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Dissertations / Theses on the topic 'Paleontology'

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Published: 4 June 2021
Last updated: 31 July 2024

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1

Moreno, Duilio Prado [UNESP]. "Distribuição dos foraminíferos recentes associados à vegetação na faixa estuarina do Rio Itapanhaú, Bertioga, São Paulo." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/92885.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
O presente trabalho tem a finalidade de estudar a distribuição dos foraminíferos no estuário do Rio Itapanhaú, Bertioga, São Paulo, objetivando em contribuir com o conhecimento de tal comunidade dentro do estuário. As águas intersticiais das lamas desse estuário, tiveram, em março de 2003, valores de salinidade variando de 30,5 a 2 e pH oscilando entre 7,54 e 4,62. A abundante microfauna de foraminíferos é representada por 27 gêneros e 29 espécies, sendo amplamente dominada por textulariinos (23 espécies). O Rio Itapanhaú foi dividido em cinco biofácies baseado nas espécies dominantes e subdominantes de foraminíferos: Biofácies I (Ammonia spp./Elphidium spp.); Biofácies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata) e Biofácies III (H. wilberti/Milimammina fusca/A. mexicana); Biofácies IV (M.fusca/H. wilberti/A. mexicana), com valores de salinidade abaixo de 12, e Biofácies V (Miliammina fusca). No médio e alto estuário a diversidade e equitatividade de foraminíferos alcançam seus menores valores, refletindo o estresse desta comunidade ao grande volume de água doce. Miliammina fusca tem sua abundância gradativamente aumentada em direção à montante do estuário, associando-se a bancos de lama colonizados sucessivamente por vegetação de Spartina sp. Crinum sp. e Scirpus sp. A diversidade e equitatividade da comunidade de foraminíferos próxima ao oceano apresentam maiores valores. Relações biofaciológicas e fitofaciológicas permitem ver que enquanto o baixo estuário possui apenas uma fitofácies, segmentada em biofácies I, II, III e IV. Já no médio e alto estuário a situação é invertida, havendo praticamente apenas uma única biofácies de foraminíferos (Biofácies V). As biofácies de foraminíferos aqui reconhecida podem auxiliar estudos paleoecológicos e palegeográficos e compreender a evolução da flora estuarina bem como a hidrodinâmica do estuário.
This work has the purpose to study the foraminiferal zonation along the estuary of the Itapanhaú River, Bertioga, São Paulo, with the main goal to increase the knowledge of the foraminiferal community in the estuarine system. The interstitial water in the mud of this estuary, Bertioga-São Paulo, as well as the main channel s, had, in March 2003, salinity values between 30, 5 and 2 and pH between 7.54 and 4.62. The foraminifera microfauna is comprised by 27 genus and 29 species, where the Textulariina is the dominant suborder along the estuary. The Itapanhaú River has been divided in five biofacies based in foraminifera dominant and subdominant species: Biofacies I (Ammonia spp./Elphidium spp.); Biofacies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata); Biofácies III (Haplophragmoides wilberti/Miliammina fusca/A. mexicana); Biofacies IV (M. fusca/ H. wilberti/A. mexicana) with a salinity under 12 and Biofacies V (Miliammina fusca). In the middle and high estuary the diversity and equitability of the foraminiferal community show lower values, reflecting the stress of the system. Miliammina fusca has its abundance gradually increased in the direction of the spring of the river, associating itself to mud banks successively colonized by Spartina sp. Crinum sp. and Scirpus sp. vegetation. The diversity and equitability of the foraminiferal community increases at the low estuary near the ocean. The relationship between biofacies and phytofacies permits to conclude that there are four biofacies to one phytofacies in the low estuary of the Itapanhaú River. On the other hand, at the high estuary, there are four phytofacies to basically one biofacies nearly the exactly the opposite feature found in the low one. The biofacies zonation of this study might be useful on paleoecological and paleogeographical studies to understand the evolution of the plant estuarine community and also to the hydrodynamic knowledge of the system.
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2

Moreno, Duilio Prado. "Distribuição dos foraminíferos recentes associados à vegetação na faixa estuarina do Rio Itapanhaú, Bertioga, São Paulo /." Rio Claro : [s.n.], 2004. http://hdl.handle.net/11449/92885.

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Orientador: Dimas Dias Brito
Banca: Antonio Fernando Monteiro Camargo
Banca: Beatriz Beck Eichler
Resumo: O presente trabalho tem a finalidade de estudar a distribuição dos foraminíferos no estuário do Rio Itapanhaú, Bertioga, São Paulo, objetivando em contribuir com o conhecimento de tal comunidade dentro do estuário. As águas intersticiais das lamas desse estuário, tiveram, em março de 2003, valores de salinidade variando de 30,5 a 2 e pH oscilando entre 7,54 e 4,62. A abundante microfauna de foraminíferos é representada por 27 gêneros e 29 espécies, sendo amplamente dominada por textulariinos (23 espécies). O Rio Itapanhaú foi dividido em cinco biofácies baseado nas espécies dominantes e subdominantes de foraminíferos: Biofácies I (Ammonia spp./Elphidium spp.); Biofácies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata) e Biofácies III (H. wilberti/Milimammina fusca/A. mexicana); Biofácies IV (M.fusca/H. wilberti/A. mexicana), com valores de salinidade abaixo de 12, e Biofácies V (Miliammina fusca). No médio e alto estuário a diversidade e equitatividade de foraminíferos alcançam seus menores valores, refletindo o estresse desta comunidade ao grande volume de água doce. Miliammina fusca tem sua abundância gradativamente aumentada em direção à montante do estuário, associando-se a bancos de lama colonizados sucessivamente por vegetação de Spartina sp. Crinum sp. e Scirpus sp. A diversidade e equitatividade da comunidade de foraminíferos próxima ao oceano apresentam maiores valores. Relações biofaciológicas e fitofaciológicas permitem ver que enquanto o baixo estuário possui apenas uma fitofácies, segmentada em biofácies I, II, III e IV. Já no médio e alto estuário a situação é invertida, havendo praticamente apenas uma única biofácies de foraminíferos (Biofácies V). As biofácies de foraminíferos aqui reconhecida podem auxiliar estudos paleoecológicos e palegeográficos e compreender a evolução da flora estuarina bem como a hidrodinâmica do estuário.
Abstract: This work has the purpose to study the foraminiferal zonation along the estuary of the Itapanhaú River, Bertioga, São Paulo, with the main goal to increase the knowledge of the foraminiferal community in the estuarine system. The interstitial water in the mud of this estuary, Bertioga-São Paulo, as well as the main channel’s, had, in March 2003, salinity values between 30, 5 and 2 and pH between 7.54 and 4.62. The foraminifera microfauna is comprised by 27 genus and 29 species, where the Textulariina is the dominant suborder along the estuary. The Itapanhaú River has been divided in five biofacies based in foraminifera dominant and subdominant species: Biofacies I (Ammonia spp./Elphidium spp.); Biofacies II (Arenoparrella mexicana/Haplophragmoides wilberti/Trochammina inflata); Biofácies III (Haplophragmoides wilberti/Miliammina fusca/A. mexicana); Biofacies IV (M. fusca/ H. wilberti/A. mexicana) with a salinity under 12 and Biofacies V (Miliammina fusca). In the middle and high estuary the diversity and equitability of the foraminiferal community show lower values, reflecting the stress of the system. Miliammina fusca has its abundance gradually increased in the direction of the spring of the river, associating itself to mud banks successively colonized by Spartina sp. Crinum sp. and Scirpus sp. vegetation. The diversity and equitability of the foraminiferal community increases at the low estuary near the ocean. The relationship between biofacies and phytofacies permits to conclude that there are four biofacies to one phytofacies in the low estuary of the Itapanhaú River. On the other hand, at the high estuary, there are four phytofacies to basically one biofacies nearly the exactly the opposite feature found in the low one. The biofacies zonation of this study might be useful on paleoecological and paleogeographical studies to understand the evolution of the plant estuarine community and also to the hydrodynamic knowledge of the system.
Mestre
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3

DeVries, Thomas John. "The geology and paleontology of tablazos in northwest Peru /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu148726669109728.

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4

Sun, Weiguo. "Contributions to palaeontology and stratigraphic correlation of the late precambrian in China and Australia /." Title page, contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09phs957.pdf.

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5

Tavares, Sandra Aparecida Simionato 1969. "Fósseis do afloramento Santa Irene, cretácio superior da Bacia Bauru = inferências paleoecológicas." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287322.

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Orientadores: Frésia Soledad Ricardi Torres Branco, Ismar de Souza Carvalho
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências
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Resumo: O Afloramento Santa Irene tem sido considerado um dos mais significativos da Bacia Bauru, na Formação Adamantina, pela abundancia e boa conservação de fósseis associados ali encontrados, como dentes isolados de arcossauros carnívoros associados a fósseis de um dinossauro saurópode herbívoro. Os fósseis foram coletados nos anos de 1997 e 1998, na área rural do Município de Monte Alto - SP, e hoje compõem parte do acervo do Museu de Paleontologia de Monte Alto. Os dentes isolados de tal afloramento são o principal material de estudo deste trabalho, que, acrescidos a outros dados obtidos através da análise das feições bioestratinômicas e geológicas da região, permitiram tecer uma interpretação paleoecológica para o Afloramento Santa Irene. Foram analisados vinte e seis exemplares de dentes de arcossauros carnívoros, sendo dezoito deles enquadrados como Theropoda e oito como elementos dentários pertencentes aos Crocodyliformes. Os dentes de Theropoda se distinguem daqueles de Crocodyliformes por serem os primeiros mais achatados lateralmente, além de apresentarem serrilhas. Foi possível constatar que quatorze dos dezoito exemplares classificados dentro da Subordem Theropoda apresentam características pertencentes à Ceratosauria, família Abelisauridae, e Maniraptora, família Dromaeosauridae. A coleção de dentes de Crocodyliformes coletados no afloramento Santa Irene consiste de oito exemplares em geral cônicos, com estriamento ao longo da carena, podendo ou não apresentar bordos serrilhados e seção basal arredondada, sendo possível classificá-los dentro da família Trematochampsidae. Os fósseis articulados e com pouco desgaste do Aeolosaurus indicam um soterramento parcial logo após a morte ou ainda na fase de destruição de seus elementos não esqueléticos. A observação do afloramento e do seu entorno permitiu deduzir que a região apresentava rios, possivelmente, entrelaçados com deposição sazonal de sedimentos e períodos de estabilidade com a formação de solos incipientes. Durante os períodos interdeposicionais e de formação do solo, nota-se a ocorrência da precipitação de minerais, dando origem à formação de calcretes, resultado de períodos secos marcantes. O afloramento Santa Irene representa a deposição de rios que formavam barras arenosas, nas quais diversos grupos de animais buscavam água e alimento. Conclui-se que estes animais habitavam ou transitavam por aquele ambiente, pois não há sinais de que os fósseis tenham sido transportados até o local no qual foram coletados, mas sim que a carcaça do Aeolosaurus serviu de alimentação para outros animais no local de sua morte. Desta forma, o material analisado permitiu a reconstituição de um retrato impar de um ecossistema a muito extinto
Abstract: The Santa Irene outcrop has been considered one of the most significant of the Bauru Basin, in the Adamantina formation, because of abundance and good preservation of associated fossils found there, as isolated teeth of carnivorous archosaurs associated with fossils of a herbivorous sauropod dinosaur. The fossils were found in 1997 and 1998, in rural areas of the city of Monte Alto - SP, and today compose the collection of the Museum of Paleontology of Monte Alto. The isolated teeth from this outcrop is the main material of this paper, which, together with other data obtained by analysis of biostratonomic and geological features of the region, allowed to make a paleoecological interpretation of the outcrop Santa Irene. Twenty-six copies of teeth of carnivorous archosaurs were analyzed, eighteen of them being classified as Theropodomorpho and eight teeth as belonging to Crocodyliformes. The teeth of Theropodomorpho can be distinguished from those to be the first Crocodyliformes as they are more flattened laterally, besides having serrations. It was found that fourteen of the eighteen specimens classified within the suborder Theropoda fit the characteristics belonging to Ceratosauria, family Abelisauridae and Maniraptora, family Dromaeosauridae. The collection of Crocodyliformes teeth collected from the outcrop Santa Irene consists of eight copies generally conical, with streaking along the keel, presenting or not serrated edges and rounded basal section, being possible to classify them within the family Trematochampsidae. The articulated and with little wear fossils of Aeolosaurus indicate a burial soon after death or during the destruction of its non-skeletal elements. The observation of the outcrop and its surroundings allow deducing that the region had braided rivers with seasonal sediment deposition and periods of stability with the formation of incipient soils. During no deposicional intervals periods and soil formation, can be noted the occurrence of precipitation of minerals, giving rise to the formation of calcrete, result of striking dry periods. The outcrop of St. Irene was formed by rivers that formed sand bars, in which various groups of animals tried to find food and water. It can be deduced that these animals lived or transited through that environment, because there is no evidence that the fossils were transported to the location in which they were collected, but that the Aeolosaurus remains served as food for other animals at his death location. Thus, the analyzed material allowed the reconstitution of an unique portrait of an ecosystem to long extinct
Mestrado
Geologia e Recursos Naturais
Mestre em Geociências
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6

Backus, David Hunt. "A morphometric and chemostratigraphic study of Upper Campanian baculitids from Punta San José, Baja California /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/6739.

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7

Shen, Jian-Wei. "Effects of differing tectono-stratigraphic settings on late Devonian and early carboniferous reefs, Western Australia, Eastern Australia, South China, and Japan /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17417.pdf.

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8

Shelton, Jessica Anne. "Application of sequence stratigraphy to the nonmarine Upper Cretaceous Two Medicine Formation, Willow Creek anticline, northwestern, Montana." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/shelton/SheltonJ0507.pdf.

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9

Luo, Hui. "Devonian radiolarian biostratigraphy of Southwest China." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22718862.

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10

Skinner, Ethan S. "Taphonomy of exceptionally perserved fossils from the Kinzers Formation (Cambrian), southeastern Pennsylvania." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1090592371.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains xiv, 167 p.; also includes graphics. Includes bibliographical references (p. 127-143).
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11

Menegazzo, Mirian Costa. "Revisão dos Testudines fósseis do cretáceo superior da Bacia Bauru, com a descrição preliminar de novo morfótipo /." Rio Claro : [s.n.], 2009. http://hdl.handle.net/11449/92890.

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Orientador: Reinaldo J. Bertini
Banca: Emérito Paulo Milton Barbosa Landim
Banca: Douglas Riff Gonçalves
Resumo: Testudines constituem um grupo de amniotas muito comum em depósitos do Cretáceo do Brasil, sendo abundantes na Bacia Bauru. Até o momento, para estes sedimentos, foram descritas as espécies "Podocnemis" harrisi, "Podocnemis" brasiliensis, Roxochelys wanderleyi, Bauruemys elegans e Cambaremys langertoni. As ocorrências de Testudines distribuem-se amplamente pelo Oeste dos estados de São Paulo e Minas Gerais, estando presentes nas formações Santo Anastácio, Araçatuba, Adamantina e Marília. O presente estudo revisa a Paleontologia, Paleoecologia e Paleobiogeografia relacionadas a essas ocorrências. Em adição, um novo material é descrito e discutida a Filogenia de alguns Pelomedusoides e as espécies presentes na Bacia Bauru. A descrição do novo morfótipo permitiu algumas questões sobre o relacionamento entre Cambaremys langertoni e "Podocnemis" brasiliensis, considerados no presente trabalho como um único táxon. Assim, essa proposta pode trazer possibilidades de correlações estratigráficas, porque o novo morfótipo, e as espécies Cambaremys langertoni e "Podocnemis" brasiliensis são provenientes de quatros unidades geológicas distintas da Bacia Bauru, formações Araçatuba, Adamantina, Marília e Santo Anastácio
Abstract: Testudines is an amniote group very common in the Cretaceous deposits from Brazil, and it is abundant in the Bauru Basin. For these sediments, until now, there were described the species: "Podocnemis" harrisi, "Podocnemis" brasiliensis, Roxochelys wanderleyi, Bauruemys elegans and Cambaremys langertoni. The occurrences of Testudines are widely distributed in Western São Paulo and Minas Gerais states, and they are present in the Santo Anastácio, Araçatuba, Adamantina and Marília formations. The present study revises the Paleontology, Paleoecology and Paleobiogeography related to these occurrences. In addition, a new fossil material is described and the Phylogeny of some Pelomedusoides and the species presents in the Bauru Basin is discussed. The description of the new morphotype allowed some questions about the relationships between Cambaremys langertoni and "Podocnemis" brasiliensis, and in this study they are considered the same taxon. So, this assumption could bring significant stratigraphical correlations possibilities, because the new morphotype, "Podocnemis" brasiliensis and Cambaremys langertoni came from four distinct geological units of the Bauru Basin, Araçatuba, Adamantina, Marília and Santo Anastácio Formation
Mestre
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12

Demirel, Seda. "Foraminiferal Paleontology And Sequence Stratigraphy In The Upper Visean." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614831/index.pdf.

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The aim of this study is to investigate the Upper Visean substages, delineate the Visean - Serpukhovian boundary with calcareous foraminifera and interpret the foraminiferal evolution and sequence stratigraphical framework by using sedimentary cyclicity across the boundary section. For this purpose a 59,61 m thick stratigraphic section consisting of mainly limestone and partly sandstone and shale is measured in the Aziziye Gedigi and Oruç
oglu Formations in the Pinarbasi Region of Eastern Taurides. A detailed micropaleontological study has revealed presence of important foraminiferal groups namely, parathuramminids, earlandiids, endothyroids, archaediscids, biseriamminids, fusulinids, loeblichids, tournayellids and paleotextularids and 145 species and three biozones. The biozones are, in ascending order, Eostaffella ikensis &ndash
Vissarionovella tujmasensis Zone (Mikhailovsky
Late Visean), Endothyranopsis cf. sphaerica &ndash
Biseriella parva Zone (Venevsky
Late Visean) and Eostaffella pseudostruvei &ndash
Archaediscids @ tenuis stage Zone (Taurssk
Early Serpukhovian). A detailed microfacies analysis was carried out in order to understand the depositional history and sedimentary cyclicity and construct the sequence stratigraphic framework of the studied area. Three main depositional environments consisting of open marine, shoal or bank and tidal flat environments were interpreted based on the analysis of 12 major microfacies and 11 sub-microfacies types. Based on the vertical association of microfacies twenty-six cycles, two sequence boundaries and three sequences were recognized in the studied section and these two sequence boundaries, which correspond to the Mikhailovsky and Venevsky horizons, are the records of the global sea level changes during the Late Paleozoic Ice Age. Within this context Visean &ndash
Serpukhovian boundary falls in the transgressive system tract of the third sequence. The duration of cycles are calculated as 117 ky and interpreted as orbitally induced glacioeustatic cycles.
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13

Minkler, Heidi. "The brachiopod communities and systematic paleontology of Anticosti Island /." Columbus, Ohio : Ohio State University, 2003. http://hdl.handle.net/1811/6105.

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14

Aguado, Merlo Roque. "Nannofósiles del cretácico de la Cordillera Bética (sur de España) bioestratigrafía /." Granada : Universidad de Granada, 1994. http://catalog.hathitrust.org/api/volumes/oclc/40940900.html.

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15

Fuller, Margaret. "Early Cambrian corals from the Moorowie Formation, Eastern Flinders Ranges, South Australia /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09SM/09smf967.pdf.

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16

Peleo-Alampay, Alyssa M. "Miocene and oligocene calcareous nannofossils : biochronology and paleoceanography /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9823695.

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17

Meijaard, Erik. "Solving mammalian riddles : a reconstruction of the Tertiary and Quaternary distribution of mammals and their palaeoenvironments in island South-East Asia /." View thesis entry in Australian Digital Theses Program, 2004. http://thesis.anu.edu.au/public/adt-ANU20050924.221423/index.html.

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18

Menegazzo, Mirian Costa [UNESP]. "Revisão dos Testudines fósseis do cretáceo superior da Bacia Bauru, com a descrição preliminar de novo morfótipo." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/92890.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Testudines constituem um grupo de amniotas muito comum em depósitos do Cretáceo do Brasil, sendo abundantes na Bacia Bauru. Até o momento, para estes sedimentos, foram descritas as espécies “Podocnemis” harrisi, “Podocnemis” brasiliensis, Roxochelys wanderleyi, Bauruemys elegans e Cambaremys langertoni. As ocorrências de Testudines distribuem-se amplamente pelo Oeste dos estados de São Paulo e Minas Gerais, estando presentes nas formações Santo Anastácio, Araçatuba, Adamantina e Marília. O presente estudo revisa a Paleontologia, Paleoecologia e Paleobiogeografia relacionadas a essas ocorrências. Em adição, um novo material é descrito e discutida a Filogenia de alguns Pelomedusoides e as espécies presentes na Bacia Bauru. A descrição do novo morfótipo permitiu algumas questões sobre o relacionamento entre Cambaremys langertoni e “Podocnemis” brasiliensis, considerados no presente trabalho como um único táxon. Assim, essa proposta pode trazer possibilidades de correlações estratigráficas, porque o novo morfótipo, e as espécies Cambaremys langertoni e “Podocnemis” brasiliensis são provenientes de quatros unidades geológicas distintas da Bacia Bauru, formações Araçatuba, Adamantina, Marília e Santo Anastácio
Testudines is an amniote group very common in the Cretaceous deposits from Brazil, and it is abundant in the Bauru Basin. For these sediments, until now, there were described the species: “Podocnemis” harrisi, “Podocnemis” brasiliensis, Roxochelys wanderleyi, Bauruemys elegans and Cambaremys langertoni. The occurrences of Testudines are widely distributed in Western São Paulo and Minas Gerais states, and they are present in the Santo Anastácio, Araçatuba, Adamantina and Marília formations. The present study revises the Paleontology, Paleoecology and Paleobiogeography related to these occurrences. In addition, a new fossil material is described and the Phylogeny of some Pelomedusoides and the species presents in the Bauru Basin is discussed. The description of the new morphotype allowed some questions about the relationships between Cambaremys langertoni and “Podocnemis” brasiliensis, and in this study they are considered the same taxon. So, this assumption could bring significant stratigraphical correlations possibilities, because the new morphotype, “Podocnemis” brasiliensis and Cambaremys langertoni came from four distinct geological units of the Bauru Basin, Araçatuba, Adamantina, Marília and Santo Anastácio Formation
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19

Souza, Melina Mara de 1984. "Palinologia em sedimentos quaternários, localizados na Estação do Instituto Florestal de Jataí, SP." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287276.

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Orientadores: Frésia Soledad Ricardi Torres Branco, André Jasper
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências
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Resumo: O estudo de uma trincheira coletada em um meandro abandonado, as margens do Rio Mogi-Guaçú, em uma área coberta por Cerrado, na Estação do Instituto Florestal de Jataí, Município de Luís Antônio (SP), permitiu realizar estudos pertinentes a evolução paleoambiental e, possíveis inferências paleoclimáticas, ao longo dos últimos 10.251 anos A.P. As interpretações paleoecológicas foram baseadas nas análises dos fragmentos de carvão, assembléias de palinomorfos, e análises isotópicas. A partir das análises isotópicas foi possível estabelecer a cronologia dos eventos ocorridos no local, por meio de análises de 14C, e a distinção dos valores isotópicos de ? 13C, que possibilitou a interpretação e diferenciação das variações da vegetação de plantas C3 (árvore) e C4 (gramínea). A análise palinológica, foi baseada em diagrama de perfil de porcentagem e concentração dos palinomorfos preservados no depósito estudado, o que permitiu estabelecer, através de dados estatísticos a determinação e distribuição da vegetação durante o Holoceno na área de estudo. Para análise dos fragmentos de carvão, foi feita á identificação e separação dos fragmentos encontrados em cada nível, em estereomicroscópio e fotografados no MEV, estabelecendo inferências e informações importantes tanto no domínio das variações paleoambientais, como paleoclimáticas e paleoincêndios. Os resultados das análises palinológicas, isotópicas e fragmentos de charcoals apontaram para um clima mais seco que o atual entre 10.251 e 10.186 anos A.P. com altas taxas de fragmentos de carvão, indicando períodos de ocorrência de paleoincêndios e de abertura florestal, onde valores de ? 13C em torno de -14,26¿, mostram a presença de plantas C4 (gramíneas), uma vegetação mais aberta que a atual. Entre 10.186 e 2.096 anos A.P. onde ocorreu um empobrecimento isotópico e uma mistura de plantas C3 e C4, com o aumento da freqüência de grãos de pólen indicadores de Cerrado como Byrsonima e Dydimopanax, podemos inferir que nesta fase o clima esteve mais úmido, e a vegetação mais fechada. Após 2.096 anos A.P. até os dias atuais as condições paleoclimáticas seriam as mesmas, caracterizada como cerradão, que possui formações florestais com espécies de Cerrado sentido restrito, sem nenhum registro de fragmentos de carvão e o aparecimento de grãos de pólens de Cerrado
Abstract: The study collected a trench in an abandoned meander on the banks of Mogi-Guaçú River in an area covered by Cerrado at the Station of the Instituto Florestal de Jataí, in Municipality of Luis Antonio (SP). It was allowed to conduct relevant studies and palaeoenvironmental evollution, possible paleoclimatic inferences, over the past 10.251 years A.P. The paleoecological interpretations were based on analysis of charcoal fragments, palynomorph assemblages, and isotopic analysis. From the isotopic analysis it was possible to establish the chronology of events on site, by analysis of 14C, and the distinction of the isotopic values of ? 13C, which facilitated the interpretation and differentiation of changes in vegetation from C3 plants (trees) and C4 ( grass). Pollen analysis were based on census profile of the percentage and concentration of the palynomorphs preserved in the deposit studied allowing to establish, through statistical data, the determination and distribution of vegetation during the Holocene in the study area. To analyze the charcoals, it was made the identification and the fragments found in each level were separated by a stereomicroscope and photographed in the MEV, establishing inferences and important information, both in the field of palaeoenvironmental variations, as paleoclimate and paleofires. The results of pollen analysis, isotopic and charcoals fragments pointed to a drier climate than nowadays, from 10.251 to 10.186 years A.P. with high rates of charcoals fragments, indicating periods of paleofires occurrence and open forest where values around ? 13C -14,26 ¿, indicated the presence of C4 plants (grasses), more open vegetation than at present. From 10.186 to 2.096 years A.P. occurred an isotopic depletion and a mixture of C3 and C4 plants, increasing pollen frequency indicators of Cerrado and Byrsonima Dydimopanax. At this stage the climate was wetter and the vegetation closer. After 2.096 years A.P. until nowadays, the paleoclimatic conditions have been the same, characterized as Cerrado, which has forest with species of Cerrado sensu stricto with no record of charcoals and the appearance of pollen of Cerrado
Mestrado
Geologia e Recursos Naturais
Mestre em Geociências
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20

Pazinato, Paula Giovana. "Crustáceos Malacostraca do Membro Taquaral, formação Irati, Permiano inferior da Bacia do Paraná : sistemática, tafonomia e paleoecologia /." Rio Claro, 2017. http://hdl.handle.net/11449/151848.

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Orientador: Rosemarie Rohn Davies
Banca: Karen Adami-Rodrigues
Banca: Renato Pirani Ghilard
Resumo: Este trabalho apresenta uma análise dos crustáceos Malacostraca do Membro Taquaral, unidade basal da Formação Irati, de idade artinskiana-kunguriana do Cisuraliano (época inicial do Permiano), de um afloramento próximo ao Rio Passa Cinco, Município de Rio Claro, São Paulo. Normalmente, o membro é caracterizado por pelitos escuros com cristais dispersos de pirita, porém uma intrusão básica cretácea na área do afloramento alterou as rochas localmente para pelitos róseos pouco friáveis. Os fósseis do membro são pouco diversificados, limitando-se a pequenos restos de peixes paleonisciformes e celacantiformes, minúsculos bivalves (somente numa delgada camada), alguns palinomorfos incluindo raros acritarcas, além dos crustáceos. Assume-se que o Membro Taquaral represente condições distais de um mar epicontinental raso muito restrito, possivelmente com salinidade variável, baixa energia e fundo redutor. Os crustáceos das coleções do IGCE-UNESP (Rio Claro), da FFCL-USP (Ribeirão Preto) e obtidos em novas coletas, estudados por microscopia ótica tradicional e por microscopia eletrônica de varredura, encontram-se preservados como moldes recobertos por óxido de ferro. Ocorrem três assinaturas bioestratinômicas: 1) elementos esqueletais quase totalmente articulados; 2) parcialmente articulados; e 3) como peças isoladas. Após quase um século desde a descoberta do Syncarida Clarkecaris brasilicus (Clarke, 1920), o presente estudo confirma que o primeiro segmento torácico está fusionado ao céfalo, o que requer a inclusão da espécie na ordem Anaspidacea. Julgava-se que este abundante Malacostraca fosse o único do Membro Taquaral, porém estudos recentes revelaram a existência de raros fósseis articulados e desarticulados de uma segunda espécie, aqui referida como "morfotipo 1", com preservação inclusive de moldes do trato ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This study analyses malacostracean crustaceans of the Artinskian-Kungurian (Cisuralian, Permian) Taquaral Member, basal Irati Formation of the Paraná Basin, from an outcrop close to the Passa Cinco River, Rio Claro municipality, State of São Paulo, Brazil. Dark mudstones with dispersed pyrite crystals usually characterize this member; however, a Cretaceous basic magmatic intrusion in the outcrop area locally altered the dark mudstones into sturdy pinkish mudstones. The low diversity fossil assemblage comprises palaeonisciformes and coelacanthiformes fish remains, very small bivalve mollusks (only in a thin bed), palynomorphs including rare acritarchs, in addition to the malacostraceans. It is assumed that the Taquaral Member represents distal conditions of a shallow epicontinental sea, very restricted, with variable salinity, low energy and anoxic bottom. The crustaceans of the paleontological collections of IGCE-UNESP (Rio Claro) and FFCL-USP (Ribeirão Preto), as well as the new collected fossils were analyzed under optical and SEM microscopes are preserved as compressed moulds with surface coated by iron oxide. The fossils show three biostratinomic signatures: 10 almost entirely articulated skeletal elements; 2. partially articulated elements; and 30 isolated parts. After almost one century since the discovery of the syncarid Clarkecaris brasilicus (Clarke, 1920), this revision confirms that the first thoracic somite is fused to the cephalon, which implies that this species must be replaced into Anaspidacea. It was believed that this abundant Malacostraca was the only crustacean species of the Taquaral Member, but recent studies revealed that some fossils belong to another Malacostraca taxon, referred provisionally as "morphotype 1", with soft parts preserved, as portions of the digestive tract and muscular tissue. Four pairs of quelate thoracopods and a telson with a high-developed ... (Complete abstract electronic access below)
Mestre
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21

Rueda, i. Torres Josep Manuel. "L'acció antròpica sobre les matèries dures animals durant el Plistocè del Nord-Est de Catalunya." Doctoral thesis, Universitat de Girona, 1993. http://hdl.handle.net/10803/83715.

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Estudi de diferents aprofitament antròpics de la fauna del Plistocè del Nord-Est de Catalunya des d’una perspectiva tafonòmica, de determinació faunística, de processos de formació dels dipòsits òssis (ja sigui per acció d’un carnívor, processos de desarticulació natural o per acció de l’home). L’acumulació antròpica s’estudia des de l’òptica de l’anàlisi de les modificacions òssies i es determinen els següents processos: esquarterament, desarticulació, descarnació, obtenció de medul•la i grasses i fabricació d’eines (indústria òssia). La metodologia de treball s’ha elaborat a partir de l’experimentació, la comparació bibliogràfica, tant de jaciments arqueològics com etnològics. La fitxa resultant de la metodologia aplicada és analítica i estructural. L’estudi es limita als jaciments de L’Arbreda, Mollet i Cova 120 que donen una completa visió evolutiva de les tècniques de carnisseria i fabricació d’eines òssies que van des del Paleolític mitjà a finals del superior. Com a contrapunt s’han estudiat també les modificacions òssies del jaciment vil•lafranquià. D’un antiguitat de 900.000 anys d’Incarcal V. D’aquesta manera es poden contrastar els resultats dels jaciments arqueològics. Evidentment aquest jaciment paleontològic no conserva cap vestigi d’acció humana. Tot això ha portat a poder determinar els diferents processos que han contribuït a la formació dels dipòsits òssis esmentats, els diferents mètodes de carnisseria aplicats i els processos de fabricació d’eines òssies. A partir d’aquesta informació s’han pogut establir diferents tècniques i de mètode que han pogut comparar-se amb diferents períodes culturals, establint-se una clar correlació entre canvi tècnic i canvi cultural.
Estudio de los distintos aprovechamientos antrópicos de la fauna pleistocénica de la Ccatalunya N.O., desde una perspectiva tafonómica, de determinación faunística, de procesos de formación de los depósitos óseos (ya sea por acción de carnívoro, procesos de desarticulación natural o por acción del hombre). La acumulación antrópica se estudia desde la óptica del análisis de las modificaciones óseas, determinándose los siguientes procesos: despellejamiento, descuatización primaria y secundaria, desarticulación, descarnación, obtención de médula y grasas y fabricación de útiles (industria ósea). La metodología de trabajo se ha elaborado a partir de la experimentación, la comparación bibliográfica, tanto de yacimientos arqueológicos, como etnológicos. El tipo de ficha resultante de la metodología aplicada es una exhaustiva ficha analítica y estructural. El estudio se limita a los yacimientos de L’Arbreda, Mollet i i Cova 120, que nos dan una completa visión evolutiva de las técnicas de carniceria y fabricación de utillaje óseo que abarcan desde el Paleolítico Medio a finales del Superior. Como contrapunto se han estudiado tambien las modificaciones óseas del yacimiento vilafranquiense, de una antiguedad de 900.000 años de Incarcal V. De esta manera se pueden contrastar los resultados de los yacimientos arqueológicos. Evidentemente este yacimiento paleontológico no conserva, ni por asomo, ningun vestigio de acción humana. Todo ello nos ha llevado a poder determinar los distintos procesos que han contribuido a la formación de los depósitos óseos mencionados, los distintos métodos de carnicería aplicados y los procesos de fabricación de utillaje óseo. A partir de esta información hemos podido establecer diferencias técnicas y de método que han podido ser comparadas con los distintos períodos culturales, estableciéndose una clara correlación entre cambio técnico y cambio cultural.
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22

Perrichot, Vincent. "Environnements paraliques à ambre et à végétaux du Crétacé nord-aquitain (Charents, sud-ouest de la France) /." Rennes, France : Université de Rennes I, Campus de Beaulieu, 2005. http://www.geosciences.univ-rennes1.fr/biblio/edition/MGR-Perrichot.htm.

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23

Luo, Hui, and 羅煇. "Devonian radiolarian biostratigraphy of Southwest China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B3124211X.

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24

Burbidge, Susan M. (Susan Margot) Carleton University Dissertation Geology. "Late quaternary benthic foraminifera of the Patton-Murray Seamount group, Gulf of Alaska." Ottawa, 1992.

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25

Paulo, Pedro Oliveira [UNESP]. "Representantes da megafauna pleistocênica do sítio fossilífero de Pau Ferrado (Jaupaci, Goiás)." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/124532.

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Embora ocorrências de mamíferos fósseis da megafauna pleistocênica sejam conhecidas em praticamente todos os estados brasileiros desde meados do Século XX, em Goiás somente foram confirmadas em meados da década de 1970. As primeiras evidências de membros da megafauna foram reconhecidas no Município de Jaupaci, Centro-Oeste do Estado de Goiás. Tais restos foram coletados em níveis sedimentares do Pleistoceno final no Sítio Fossilífero Pau Ferrado, em uma rudimentar mina de extração de diamantes com o mesmo nome. Nesta localidade foram coletadas expressivas quantidades de restos fósseis, permitindo o reconhecimento, até então, de quatro gêneros, dentre os quais Eremotherium e Stegomastodon. Os principais objetivos deste trabalho foram realizar a descrição osteológica e a respectiva identificação mais acurada das peças provenientes de Jaupaci, depositadas como parte do acervo do Museu do Memorial do Cerrado/PUC-Goiás, bem como reconhecer eventuais variações ontogenéticas, patologias e a presença de taxa não identificados previamente dentre estes. Adicionalmente, promover a datação geocronológica desta importante localidade fossilífera, situando-a no tempo, e propor, tentativamente, condições paleoambientais características do Pleistoceno final na região. A descrição osteológica de peças pertencentes à Eremotherium laurillardi e Stegomastodon waringi permitiu o reconhecimento de informações paleobiológicas importantes, não consideradas anteriormente em estudos prévios. Constatou-se a presença de indivíduos em diferentes estágios ontogenéticos no âmbito dos espécimens atribuíveis a E. laurillardi, com a presença de jovens, sub-adultos e animais longevos. O inédito reconhecimento de elementos ósseos, indicando a presença de representantes da Família Mylodontidae nesta localidade, permitiu ampliar a diversidade dos representantes em Pau Ferrado. Identificou-se ainda um elemento patológico...
In Brazil almost all regions show reports of Pleistocene mammal fossils, since early years of the Twentieth Century, although for Goiás State they were only confirmed in the 1970's. In Goiás the first reports of Megafauna individuals were from Jaupaci, Midwestern Goiás, located 260 km from Goiânia. These remains were collected in Pleistocene levels of the Pau Ferrado Fossiliferous Site, from aa abandoned diamond mine with same name. From this site, a vast amount of mammal fossil bones was recovered, containing mainly representatives of Eremotherium and Stegomastodon. The goals of this work were: 1) to perform an osteological description and identification of the bone remains from Jaupaci, and part of the collections from Memorial do Cerrado Museum/PUC - Goiás; 2) to describe ontogenetic variations, typical features and pathological elements among these bone remains; 3) to perform a geochronological dating of bone remains from this fossiliferous site, placing it in time, and to propose an interpretation of the paleoenvironmental conditions for late Pleistocene in Goiás State; 4) confirmation of the fossiliferous potential of the Pau Ferrado Site. The osteological description of Eremotherium laurillardi bone samples indicated the occurrence of different ontogenetic stages of development (youngs, adults and old animals). Among the whole assemblage of bone remains it was possible to distinguish the presence of features related to Family Mylodontidae, expanding the previously reported taxon diversity for Pau Ferrado Locality. A hand bone sample from Mylodontidae was identified with pathological features, exhibiting signs of healing and putative signs of infection. Concerning Stegomastodon waring, the inference of an adult individual among the samples was possible due to wear pattern of the molars. The vastness of bone elements from Pleistocene mammals, recovered during short seasons of field work, proved the richness of the Pau Ferrado...
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Paulo, Pedro Oliveira. "Representantes da megafauna pleistocênica do sítio fossilífero de Pau Ferrado (Jaupaci, Goiás) /." Rio Claro, 2014. http://hdl.handle.net/11449/124532.

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Orientador: Reinaldo José Bertini
Banca: Maria Rita Caetano Chang
Banca: Gisele Mendes Lessa Del Giúdice
Banca: Luiz Carlos Ruiz Pessenda
Banca: Paulo Milton Barbosa Landim
Resumo: Embora ocorrências de mamíferos fósseis da megafauna pleistocênica sejam conhecidas em praticamente todos os estados brasileiros desde meados do Século XX, em Goiás somente foram confirmadas em meados da década de 1970. As primeiras evidências de membros da megafauna foram reconhecidas no Município de Jaupaci, Centro-Oeste do Estado de Goiás. Tais restos foram coletados em níveis sedimentares do Pleistoceno final no Sítio Fossilífero Pau Ferrado, em uma rudimentar mina de extração de diamantes com o mesmo nome. Nesta localidade foram coletadas expressivas quantidades de restos fósseis, permitindo o reconhecimento, até então, de quatro gêneros, dentre os quais Eremotherium e Stegomastodon. Os principais objetivos deste trabalho foram realizar a descrição osteológica e a respectiva identificação mais acurada das peças provenientes de Jaupaci, depositadas como parte do acervo do Museu do Memorial do Cerrado/PUC-Goiás, bem como reconhecer eventuais variações ontogenéticas, patologias e a presença de taxa não identificados previamente dentre estes. Adicionalmente, promover a datação geocronológica desta importante localidade fossilífera, situando-a no tempo, e propor, tentativamente, condições paleoambientais características do Pleistoceno final na região. A descrição osteológica de peças pertencentes à Eremotherium laurillardi e Stegomastodon waringi permitiu o reconhecimento de informações paleobiológicas importantes, não consideradas anteriormente em estudos prévios. Constatou-se a presença de indivíduos em diferentes estágios ontogenéticos no âmbito dos espécimens atribuíveis a E. laurillardi, com a presença de jovens, sub-adultos e animais longevos. O inédito reconhecimento de elementos ósseos, indicando a presença de representantes da Família Mylodontidae nesta localidade, permitiu ampliar a diversidade dos representantes em Pau Ferrado. Identificou-se ainda um elemento patológico...
Abstract: In Brazil almost all regions show reports of Pleistocene mammal fossils, since early years of the Twentieth Century, although for Goiás State they were only confirmed in the 1970's. In Goiás the first reports of Megafauna individuals were from Jaupaci, Midwestern Goiás, located 260 km from Goiânia. These remains were collected in Pleistocene levels of the Pau Ferrado Fossiliferous Site, from aa abandoned diamond mine with same name. From this site, a vast amount of mammal fossil bones was recovered, containing mainly representatives of Eremotherium and Stegomastodon. The goals of this work were: 1) to perform an osteological description and identification of the bone remains from Jaupaci, and part of the collections from Memorial do Cerrado Museum/PUC - Goiás; 2) to describe ontogenetic variations, typical features and pathological elements among these bone remains; 3) to perform a geochronological dating of bone remains from this fossiliferous site, placing it in time, and to propose an interpretation of the paleoenvironmental conditions for late Pleistocene in Goiás State; 4) confirmation of the fossiliferous potential of the Pau Ferrado Site. The osteological description of Eremotherium laurillardi bone samples indicated the occurrence of different ontogenetic stages of development (youngs, adults and old animals). Among the whole assemblage of bone remains it was possible to distinguish the presence of features related to Family Mylodontidae, expanding the previously reported taxon diversity for Pau Ferrado Locality. A hand bone sample from Mylodontidae was identified with pathological features, exhibiting signs of healing and putative signs of infection. Concerning Stegomastodon waring, the inference of an adult individual among the samples was possible due to wear pattern of the molars. The vastness of bone elements from Pleistocene mammals, recovered during short seasons of field work, proved the richness of the Pau Ferrado...
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27

Hopkin, Emily Kathryn. "Late Carnian (Late Triassic) conodont and ammonoid paleontology of Wrangellia." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/15529.

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The development of conodont biochronology for the Triassic Period is hindered by the lack of understanding of the genus Metapolygnathus Hayashi, 1968a and, to a lesser extent, Carniepigondolella Kozur, 2003. Specimens of these genera collected at Klaskino Inlet, British Columbia are described as species populations of M. polygnathiformis s.l., M. carpathicus, and M. nodosus and variations within these species populations are identified. The morphological variations on platform shape, relative strength of anterior platform nodes, the “communisti trend,” fused carinal nodes and an extra carinal node are shared between all species populations. Although it is beneficial to fully document the generic variability within Metapolygnathus, these variations should not be included in the genus description. Not all variations occur in all species of the genus and only three species were looked at in this thesis. The secondary focus of this thesis addresses the uncertain position of the allochthonous terrane Wrangellia in the Late Carnian. Using paleobiogeographic techniques, data on ammonoid genera occurrences were compiled for cratonic North America, Wrangellia, and the western Pacific, and then compared using the Dice coefficient. It is concluded that ammonoid similarity levels are too low to assess significance levels. Based on the collected data, however, it appears that the Wrangellian fauna is most similar to the fauna of the middle paleolatitude of the North American craton. This means that Wrangellia was probably in the eastern Pacific and at a mid-paleolatitude in the Late Carnian.
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28

Dombrosky, Jonathan. "The Descriptive Paleontology and Applied Ichthyoarchaeology of the Ponsipa Fauna." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc799491/.

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The archaeology of the Northern Rio Grande region of New Mexico has recently received an increased amount scholarly attention. In particular, understanding past trends in demographics, agricultural productivity, violence, and social networks have been primary goals of archaeological research. Understanding patterns in animal exploitation has, however, received far less attention due to a small yet growing regional zooarchaeological database. Through the identification of animal remains from a site called Ponsipa (occupied ca. A.D. 1300 to 1600), this thesis adds one large dataset to this growing database. In addition, this thesis expands on the pre-impoundment distribution of an endangered native freshwater fish species in the state of New Mexico called the blue sucker (Cycleptus elongatus). The blue sucker is a unique fish that is currently experiencing range reduction across all of its known North American distribution due to anthropogenic habitat fragmentation and degradation. Skeletal remains that were identified from Ponsipa represent the farthest known northern record of its occurrence in the state of New Mexico and highlight the extent of range restriction of the species in the area. The data concerning the historical biogeography of the blue sucker from Ponsipa have implications for the effective conservation and restoration of blue sucker located in the Rio Grande Basin.
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29

Sessa, Jocelyn A. "The dynamics of rapid, asynchronous biotic turnover in the middle Devonian Appalachian basin of New York : a thesis /." Connect to The dynamics of rapid, asynchronous biotic turnover in the middle Devonian Appalachian basin of New York (Online), 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=1054576413.

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30

Krueger, Diane M. "Conodont biostratigraphy of middle and upper Ordovician rocks in the Ouachita Mountains of Arkansas and Oklahoma /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3052190.

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31

Carvalho, Gabriela Karine Rocha de. "Alguns himenÃptera Apocrita do Membro Crato (Aptiano) da FormaÃÃo Santana, Bacia do Araripe." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16904.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior
O presente trabalho descreve novos espÃcimes de himenÃpteros provenientes dos calcÃrios laminados do Membro Crato (Aptiano) da FormaÃÃo Santana, Bacia do Araripe, aflorantes no municÃpio de Nova Olinda, sul do Estado do CearÃ. TambÃm sumaria as diversas ocorrÃncias de himenÃpteros fÃsseis, destacando as eocretÃceas. O estudo de dez exemplares de Hymenoptera Apocrita aqui descritos revelou a ocorrÃncia de trÃs famÃlias: Sphecidae (Cretosphex magnus Darling 1990 e C. parvus Darling 1990), Sapygidae (Cretofedtschenkia santanensis Osten 2007) e Evaniidae, esta representada por um gÃnero e espÃcie novos. Na Bacia do Araripe, a subordem Symphyta à pouco comum, e os Apocrita sÃo mais diversificados, com os Parasitica reunindo formas de Ichneumonoidea, âEphialtitidae, Proctotrupidae, âMesoserphidae e Evaniidae, e os Aculeata com espÃcies de Sphecidae (os mais abundantes), Sapygidae, Rhopalosomatidae, Scoliidae, Tiphiidae, Vespidae e possivelmente Formicidae. Ao longo de sua histÃria geolÃgica, os himenÃpteros sÃo principalmente representados por vespas. A partir do JurÃssico sÃo insetos relativamente comuns, apresentando um longo perÃodo de grande diversificaÃÃo (do NeojurÃssico ao TerciÃrio), quando surgiram mais de 80% de todas as 107 famÃlias com registro fÃssil atualmente conhecidas. A extinÃÃo que afetou os organismos de modo geral ao final do CretÃceo parece tambÃm ter afetado os himenÃpteros, que mostram o maior nÃmero de famÃlias extintas por perÃodo geolÃgico de sua histÃria. Os himenÃpteros do Membro Crato estÃo preservados por substituiÃÃo mineral, articulados, com asas abertas e pernas extendidas, mostrando maior nÃmero de espÃcimes fÃmeos do que machos, sem larvas conhecidas. à uma fauna bastante distinta das principais himenopterofaunas eocretÃceas conhecidas (Espanha, MongÃlia, AustrÃlia e SibÃria), nÃo compartilhando nenhum gÃnero, mas tendo como caracterÃstica em comum a pequena participaÃÃo dos Symphyta. A histÃria da pesquisa dos himenÃpteros cretÃceos no Brasil mostra que a maioria e os mais significativos trabalhos tÃm sido efetuados por pesquisadores estrangeiros, de modo que a maior parte dos exemplares de Hymenoptera provenientes do Membro Crato da Bacia da Araripe encontra-se atualmente fora do Brasil, tornando-se necessÃrio que os paleontÃlogos brasileiros assumam o estudo desta ordem de insetos ocorrente na FormaÃÃo Santana, efetuando pesquisas que venham a contribuir efetivamente para o melhor entendimento da himenopterofauna da Bacia do Araripe e enriquecendo os acervos brasileiros com seus fÃsseis.
This thesis describes new specimens of Hymenoptera from the laminated limestone of Crato Member (Aptian), Santana Formation, Araripe Basin that outcrops at Nova Olinda district, south of the Cearà State, Brazil. It also summarizes the occurrences of fossil Hymenoptera, mainly the Early Cretaceous fauna. The study of ten specimens of Hymenoptera Apocrita described here revealed the occurrence of three families: Sphecidae (Cretosphex magnus Darling 1990 and C. parvus Darling 1990), Sapygidae (Cretofedtschenkia santanensis Osten 2007), and Evaniidae, this latter represented by a new genus and a new species. In the Araripe Basin, suborder Symphyta is unusual, and Apocrita are more diverse, with Parasitica forms (Ichneumonoidea, âEphialtitidae, Proctotrupidae, and âMesoserphidae), and Aculeata species of Sphecidae (the most abundant), Rhopalosomatidae, Sapygidae, Scoliidae, Tiphiidae, Vespidae, and possibly Formicidae. Throughout its geological history, Hymenoptera are mainly represented by wasps. They are relatively common at Jurassic time, showing a long period of great diversification (from Late Jurassic to Tertiary), when rose more than 80% of all 107 families with fossil records. The extinction that affected the organisms at the Cretaceous end seems to have also affected Hymenoptera, which show the largest number of families extinct in its history. Hymenoptera from the Crato Member are preserved by mineral substitution, articulated, with open wings, and extended legs, showing major number of female, without known larvae. It is a distinct fauna from the main known Early Cretaceous himenopterofaunas (Spain, Australia, Mongolia and Siberia), not sharing any genre, but having in common the small participation of Symphyta. The history of Cretaceous Hymenoptera research in Brazil shows that the greatest number and the most significant papers have been accomplished by foreign researchers, so the most of Hymenoptera specimens from the Crato Member of the Araripe Basin is out of Brazil. It is therefore necessary that the Brazilian researchers take the study of this order of insects that occur in the Santana Formation, performing studies which will effectively contribute to the better understanding of the himenopterofauna of the Araripe Basin and enriching the Brazilian collections with their fossils.
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Quaglio, Fernanda. "Taxonomia de invertebrados fósseis (Oligoceno-Mioceno) da ilha Rei George (Antártica ocidental) e paleobiogeografia dos Bivalvia cenozóicos da Antártica." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/44/44139/tde-25042008-153222/.

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As pesquisas apresentadas nesta dissertação integram o projeto CNPq - PROANTAR 550352/02-3 \"Mudanças paleoclimáticas na Antártica durante o Cenozóico: o registro geológico terrestre\", que estuda os depósitos cenozóicos da ilha Rei George em busca elucidação do histórico ambiental e climático desta região antártica. A evolução dos padrões de circulação marinha e atmosférica no Hemisfério Sul ocorreu em resposta ao isolamento geográfico e térmico da Antártica, resultado de sua separação da Austrália, no limite Eoceno/Oligoceno, e da América do Sul, no final do Oligoceno. Sob este aspecto, o estudo de organismos fósseis registrados nos depósitos cenozóicos da Antártica contribui para o entendimento das evoluções biológicas e ambientais ocorridas concomitantemente às mudanças paleogeográficas, oceanográficas e climáticas na região ao longo do Cenozóico. Frente à dificuldade de acesso, demanda logística e extensa cobertura de gelo, apenas uma pequena porção do registro geológico da Antártica está acessível para pesquisa. Afloramentos da ilha Rei George registram as mudanças climáticas e ambientais ocorridas do Oligoceno ao Mioceno, incluindo evidências do primeiro evento de glaciação perene no oeste do continente (Oligoceno). A despeito da abundância de fósseis nos estratos cenozóicos da ilha, são poucos os trabalhos taxonômicos com descrição sistemática detalhada de bivalves fósseis. O primeiro módulo do presente estudo apresenta a descrição taxonômica de invertebrados de depósitos cenozóicos aflorantes em duas localidades da ilha Rei George, Antártica ocidental. Da Formação Cape Melville (Mioceno), península Melville, foram descritos sete táxons de bivalves, incluindo seis espécies novas. Da Formação Polonez Cove (Oligoceno), Pico Vauréal, uma região previamente inexplorada paleontologicamente, foram descritos sete táxons de invertebrados (bivalves, braquiópodes, tubos de serpulídeos, briozoários e fragmentos de equinodermes), incluindo duas espécies novas. O segundo módulo corresponde à reunião dos gêneros de bivalves registrados em depósitos cenozóicos da Antártica. A análise do registro apontou para o conhecimento bastante incipiente sobre a diversidade de bivalves antárticos ao longo do Cenozóico. Além disso, a comparação entre gêneros de bivalves cenozóicos registrados na Antártica e Nova Zelândia revelou que a maior parte dos gêneros compartilhados está registrada em depósitos eocênicos, o que suporta o isolamento geográfico da Antártica e a redução do intercâmbio faunístico entre a Antártica e regiões periféricas após o Oligoceno. A análise do registro sugeriu um evento de dispersão intenso durante o Eoceno, e pequenos pulsos de dispersão após o Oligoceno. O padrão de distribuição dos táxons concorda parcialmente com as reconstituições de paleocorrentes disponíveis na literatura. A dispersão durante o Eoceno teria ocorrido da Antártica para a Nova Zelândia na direção do Atlântico para o Pacífico. Este evento de dispersão concorda com a hipótese de existência de conexões marinhas de plataforma rasa entre o oeste e o leste da Antártica (\"Passagem de Shackleton\") e da província Weddeliana do final do Cretáceo ao Eoceno. Os eventos de dispersão pósoligocênicos teriam ocorrido durante e após o estabelecimento da Corrente Circum-Antártica, não mais pela \"Passagem de Shackleton\", mas margeando a Antártica pelas bordas ocidental atlântica e oriental em direção à Nova Zelândia. A análise do registro dos bivalves cenozóicos da Antártica também concorda com a hipótese de glaciação perene a partir do início do Oligoceno na região leste do continente, e na metade do Oligoceno na região oeste, com temperaturas mais amenas que as observadas atualmente.
The research presented in this dissertation comprised part of the CNPq - PROANTAR Project 550352/02-3 \"Mudanças paleoclimáticas na Antártica durante o Cenozóico: o registro geológico terrestre\", which studies Cenozoic deposits from King George Island in order to elucidate the environmental and climatic Cenozoic histories of this Antarctic region. Cenozoic evolution of marine and atmospheric circulation in the Southern Hemisphere occurred in response to the geographic and thermal isolation of Antarctica, which resulted from the separation of Antarctica from Australia, around Eocene/Oligocene boundary, and from South America, during the late Oligocene. Thus, study of fossil organisms from Antarctic Cenozoic deposits contributes to the understanding of biological and environmental evolutions that accompanied paleogeographic, oceanographic and climatic changes during the Cenozoic. As a result of the difficult access, logistic demand and extensive ice cover, only a small part of the Cenozoic Antarctic record is available for study. King George Island records climatic and environmental changes from the Oligocene to the Miocene, including evidence of the first full-scale glaciation (Oligocene) of West Antarctica. Despite the abundance of fossils in Cenozoic deposits of the island, taxonomic studies with detailed systematic descriptions of bivalves are very rare. The first section of this work consists of taxonomic descriptions of invertebrates from Cenozoic deposits cropping out in two localities of King George Island, West Antarctica. Seven taxa of bivalves, including six new species were described from the Cape Melville Formation (Miocene), at Melville Peninsula. Seven taxa of invertebrates (bivalves, brachiopods, serpulid tubes, bryozoans, and echinoderm fragments) were described from the Polonez Cove Formation (Oligocene), at Vauréal Peak, a site previously unexplored paleontologically. The second section presents the results of a survey of the Cenozoic fossil record of Antarctic bivalves. The analysis of the fossil record confirmed that the current knowledge about the Cenozoic diversity of the group is very scarce. Moreover, comparison of Cenozoic bivalve genera from Antarctica and New Zealand showed that the greatest number of shared taxa is recorded in Eocene deposits. This finding supports the geographic isolation of Antarctic and the drop in faunal interchange between Antarctica and periphery after the Oligocene. Analysis of the fossil record suggested an intensive dispersal event during the Eocene, and restricted pulses of dispersal from the Oligocene onwards. The distribution pattern of taxa provides partial support for available reconstructions of marine currents. Eocene dispersal would have occurred from Antarctica to New Zealand in Atlantic-Pacific direction. This dispersal event is consistent with the hypothesis of shallow marine connections between West and East Antarctica (\"Shackleton Seaway\"), as well of the existence of the Weddellian Province from the Late Cretaceous to the Eocene. Dispersal events following the Oligocene would have occurred during and after the establishment of the Circum-Antarctic Current, along the West-Atlantic and East margins of Antarctica towards New Zealand, and no longer through \"Shackleton Seaway\". These analyses also support the hypothesis of full-scale glaciation in West Antarctica from the early Oligocene onwards, and in East Antarctica since the mid-Oligocene, with warmer temperatures than today.
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Guerrini, Vitor Bonatto. "Bivalves da formação Rio do Rasto, Permiano, Bacia do Paraná, Brasil : implicações evolutivas e paleoecológicas /." Rio Claro, 2018. http://hdl.handle.net/11449/166378.

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Orientador: Marcello Guimarães Simões
Banca: Rosemarie Rohn
Banca: Luiz Eduardo Anelli
Resumo: As faunas de bivalves endêmicos do Permiano do Grupo Passa Dois, mundialmente conhecidas, evoluíram a partir de ancestrais marinhos em um enorme mar epicontinental, isolado, acompanhando a progressiva continentalização/aridização da Bacia do Paraná, Brasil, no Paleozoico Superior. No entanto, até o momento, os bivalves que se desenvolveram nos ambientes marginais de águas doces da Bacia do Paraná foram pouco estudados. Neste contexto, na presente dissertação é apresentada uma detalhada análise sistemática dos bivalves dos membros Serrinha e Morro Pelado, da Formação Rio do Rasto, Grupo Passa Dois. As implicações evolutivas, paleoecológicas e paleogeográficas dos dados são discutidas. No total, foram examinados 204 espécimes, preservados, principalmente, como moldes compostos em argilitos avermelhados. Três assembleias de bivalves foram identificadas: a- Terraia decarinata e b-Terraia cf. T. decarinata, no intervalo de transição entre os membros Serrinha e Morro Pelado, e c- Palaeomutela australis, que é registrada na parte basal do Membro Morro Pelado. A primeira assembleia (= 137 exemplares) é composta por Terraia decarinata sp. nov. (67,88%), seguida de Relogiincola delicata gen et sp. nov. (9,50%), Palaeomutela australis sp. nov. (4,38%) e Palaeomutela platinensis (Reed) (0,73%), além de conchas indeterminadas (17,52%). A segunda assembleia (= 32 exemplares) é dominada por Terraia cf. T. decarinata sp. nov. (56,25%), seguida de Terraia decarinata sp. nov. (9,37%), Palaeomu... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The worldwide known, endemic bivalve faunas of the Permian Passa Dois Group evolved from marine ancestors in a huge, isolated epeiric sea, accompanying the progressive aridization/continentalization of the Paraná Basin, Brazil. However, until now the bivalves that developed during times of marked freshening events were poorly studied. In this context, an exhaustive systematic survey of the bivalves from the uppermost part of the Serrinha and the Morro Pelado Members, Rio do Rasto Formation, Passa Dois Group, is presented. The evolutionary, paleoecologic, and paleogeographic implications of the data are also discussed. In total, 204 specimens were examined, which were mainly preserved as composite molds in mudstones. Three bivalve assemblages were recorded, namely: a- Terraia decarinata and b- Terraia cf. T. decarinata assemblages, both in the transitional interval between the Serrinha and Morro Pelado Members, and c- Palaeomutela australis assemblage that is recorded in a massive reddish sandy mudstones in the basal part of the Morro Pelado Member. The first assemblage (= 137 specimens) is composed by Terraia decarinata sp. nov. (67.88%), followed by Relogiincola delicata gen et sp. nov. (9.50%), Palaeomutela australis sp. nov. (4.38%), and Palaeomutela platinensis (Reed) (0.73%), plus 17.52% of undetermined shells. The second assemblage (= 32 specimens) is dominated by Terraia cf. T. decarinata sp. nov. (56.25%), followed by Terraia decarinata sp. nov. (9.37%), Palaeomutela ... (Complete abstract click electronic access below)
Mestre
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Hitch, Michael William. "Taxonomy, biostratigraphy and paleoecology of lower Silurian conodonts from the Anse a Pierre-Loiselle Formation, Gaspe Peninsula, Quebec." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5561.

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Conodonts of late Llandovery age have been collected from the Anse a Pierre-Loiselle Formation, the deposition of which represents a deepening episode in the generally shallow deposition of the Chaleur Group in southern Gaspe. The fauna is dominated numerically by elements assigned to Panderodus, Oulodus?, and Ozarkodina with elements of Aulacognathus, Carniodus, Distomodus, Johnognathus, Kockelella, Pterospathodus, and Walliserodus as well as rate or indeterminate taxa. One genus is new, represented by one species: Digitodontus bellistriatus. Other new species include: Apsidognathus sulcatus, Pseudooneotodus pyramis and Pterospathodus? ceragnathoides. Based on these faunas the unit is considered to represent deposition of Llandovery C$\sb6$--early Wenlock age. Due to the low abundance of zonal indicator species Pterospathodus celloni and P. amorphognathoides, a new taxon range zone is established to encompass the total range of the new species P.? ceragnathoides which is locally abundant. The position of the Llandovery-Wenlock boundary remains unclear. (Abstract shortened by UMI.)
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Morrison, Joan Olivia. "Cretaceous marine invertebrates: A geochemical perspective." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7784.

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A diagenetic evaluation was performed on marine fossil shell material from Cretaceous sediments of North America, the Arctic, the Antarctic and several localities in Europe. Trace element chemistry, XRD, SEM and stable isotope geochemistry were consistent in their results. Preservation of the original shell material of the low-Mg calcite organisms, brachiopods and belemnites, and the numerous aragonitic organisms was slightly variable with the majority of samples well preserved. Those samples that were altered underwent diagenetic stabilization in both reducing and oxic environments. Using the chemical data from only well preserved fossil shell material, basin paleo-reconstructions showed that from Aptian to Maastrichtian time, the Cretaceous seas were generally aerobic with some dysaerobia evident at the sediment/water interface and in the shallow sediment column. Paleosalinities fluctuated from brackish to normal marine, especially in the Western Interior Seaway of North America and the Paris Basin. The Lower Saxony basin, the Arctic and Antarctic were mainly normal marine with brackish conditions developing on occasion. Paleotemperatures determined from $\partial\sp $O data of preserved aragonite and low-Mg calcite shell material, also showed some variance. The Arctic and Antarctic were coolest, with Campanian/Maastrichtian temperatures about 12 or 13$\sp\circ$C, whereas the Lower Saxony basin and the Western Interior Seaway were slightly warmer, ranging from 11 to 20$\sp\circ$C. The Barremian/Aptian appeared to be the warmest time and a cooling trend was fairly consistent from then on.
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Podritske, Brandi. "Holocene climate variability and long-term diatom community dynamics in a small lake on Victoria Island, Northwest Territory, Canada." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27407.

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A lake sediment core spanning 9900 years, collected from a small lake on western Victoria Island, provides a high-resolution record of diatom community dynamics over the Holocene. Ten radiocarbon dates and 210Pb dating provided the core chronology. Loss-on-ignition (LOI) gradually increased over the Holocene whereas carbonate content and magnetic susceptibility showed an inverse trend. Biogenic silica content had apparent cyclicity over ~1500 year periods. Major shifts in diatom assemblages at 8100-8000 calendar years before present (cal yrs BP), 5800-5700 cal yrs BP, and 3800-3500 cal yrs BP occurred simultaneously with millennial-scale climate changes reported from the region. There is evidence of diatom community response to centennial scale variations such as the 'Medieval Warm Period' (~1000-700 calendar years before present, cal yrs BP), 'Little Ice Age' (~800-150 cal yrs BP) and recent warming. Variations of the taxa within the genera Staurosira, Pseudostaurosira, Fragilaria, and Staurosirella, usually combined into one genus in Arctic lake sediment studies, suggest these taxa may be more useful in paleolimnological studies than previously believed. Although recent changes in diatom community composition, production and species richness were apparent they were surpassed at other periods throughout the Holocene. The rate of community compositional change in the last few centuries was rapid, however it was not exceptional in the lake history.
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Bibeau, Karine. "The fossil record as an archive of biological information in marine ice-scoured environments : Canadian Arctic Ocean." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99323.

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Post-mortem alteration of bivalve shells on arctic ice-scoured shelves helps illucidate the fidelity of death and fossil assemblages in these settings. Degradation rates and processes were constrained by (1) characterizing the taphonomic signature of death assemblages, (2) evaluating the live-dead fidelity of the benthos, and (3) net changes in experimentally deployed shells. Results revealed an extremely harsh taphonomic mill controlled by bioerosion, fragmentation and dissolution. Only select species accumulated in death assemblages, resulting in low taxonomic fidelity; at the habitat level 50% of the live species are found dead. 100% of the dead species are found alive, suggesting no temporal or spatial exotic contributions.
Selectively preserved species could be time-averaged over 1 000s of years based on a preliminary model, yet high damage profiles suggest shorter scales of time-averaging. Skeletons are highly degraded compared to assemblages from temperate or tropical seas and reflect only a portion the living skeletonized community.
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Huang, Zhenzhen 1982. "Experimental assessment of early diagenetic changes in marine bivalve shells." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98727.

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To study the influence of early diagenesis, left valves of fresh cultured bivalves (Mytilus edulis) were deployed in the natural environments (Panama, Barbados and New Brunswick), and right valves were kept in the laboratory as the controls. After 9 days, 8 months and 1 year, the retrieved shells have shown different macroscopic changes in weight, shell area, colour and luster. The microstructure of nacre shows organic matrix maceration, dissolution on the edges of tablets, and abiotic CaC03 reprecipitation on the surface and edges of nacre tablets. High-precision analyses of their carbon and oxygen stable isotope ratios show bulk differences of up to 0.4%o between experimental and control valves within 1 year. Results therefore indicate that early diagenesis can start very quickly post-mortem, and the nature of these changes varies with burial environments.
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Waugh, David A. "Utility of fossil cuticle morphology applied to the taphonomy and taxonomy of decapod crustaceans." Thesis, Kent State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3618978.

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The purpose of the dissertation is to examine the microstructural variations within cuticle of brachyuran decapod crustaceans, the crabs and other selected decapods, in order to identify innovative character states in extant organisms and in whole or fragmentary fossil material that can be observed, coded, and treated in phylogenetic analyses. This is an entirely new approach to the study of decapod phylogeny that will link fossil and extant decapod datasets in a manner that previously has been impossible.

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Broce, Jesse S. "Taphonomic Characteristics of Fossils on the Burgess-shale-type Spectrum." Thesis, University of Missouri - Columbia, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13877133.

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Vitkus, Allison Rebecca. "Unusual, fossiliferous concretions from the lower Jurassic Moenave formation in St. George, Utah, USA| Implications for ancient fish mass mortalities." Thesis, University of Colorado at Boulder, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1600564.

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Two types of unusual concretions with similar contents but markedly different shapes and distributions were found in close stratigraphic proximity within the Whitmore Point Member of the Moenave Formation. Roughly cylindrical, elongate concretions were found in parallel and regularly spaced rows, and a layer of irregularly shaped and distributed fossiliferous concretions was discovered only a few centimeters above the cylindrical concretions. Both sets of concretions contain abundant hematite as well as enameloid fish scales. In addition, the concretions contain numerous ostracod carapaces and what appear to be rip-up clasts. Microprobe and Raman analyses of representative concretion samples reveal that the cylindrical concretions have a groundmass largely composed of silica while the irregular concretions have a groundmass largely composed of dolomite, and the ostracods within each type of concretion have been altered and match the chemistry of the surrounding groundmass. Evidence of multiple cement precipitation events is present within each concretion. These unusual concretions suggest mass fish mortality events in the large lake that occupied the St. George area in the early Jurassic.

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Berquist, C. R. Jr. "Stratigraphy and heavy mineral analysis in the lower Chesapeake Bay, Virginia." W&M ScholarWorks, 1986. https://scholarworks.wm.edu/etd/1539616565.

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Spatially continuous patterns of heavy mineral distributions in three dimensions characterized the sandy Holocene sediments of the lower Chesapeake Bay. A pilot study using Q-mode factor analysis on data from an earlier study determined mineral assemblages and mineral composition gradients; the gradients suggested that surficial sediments entered the Bay from offshore and from older deposits to the west. Principal components analysis of the same data indicated that the abundances of only 5 out of 21 minerals were adequate to explain most of the mineral variance. The mineralogy of 87 samples from cores defining two geologic cross-sections was added to the pilot study data and formed a new data set of 173 samples and 5 minerals. Q-mode factor analysis gave similar end-member compositions and mineral gradients as compared to the pilot study. Mineral gradients in the cross-sections show offshore sediment rich in amphibole, garnet, and pyroxene has entered the Bay mouth and presently overlies landward-derived sediment rich in zircon and epidote. The gradients depict tube- and tongue-shaped pathways located above paleodrainages. Surficial gradients support the notion of mutually evasive ebb and flood channels in the Bay entrance. Most of the Holocene sediment in the lower Bay appears to have originated from outside the Bay mouth, to include littoral drift from the north. The techniques used in this study may be useful in an attempt to subdivide a massive sandy lithosome by recognizing distinct stratigraphic units of different age or origin. A magnetohydrostatic mineral separator was constructed and tested.
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Leslie, Stephen A. "Upper Middle Ordovician conodont biofacies and lithofacies distribution patterns in eastern north America and northwestern Europe : evaluations using the Deicke, Millbrig and Kinnekulle K-bentonite Beds as Time Planes /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1341849131.

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Zhang, Yue. "Phylogenetics of Neoplagiaulacidae (Multituberculata, Mammalia), and Diet Reconstruction on Cimolodontan Multituberculates." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431069679.

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Scott, Evan E. "The First Monodominant Hadrosaur Bonebed from the Oldman Formation (Campanian) of Alberta." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1436494748.

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Kim, Yoo Bong. "Conodont biostratigraphy of the Middle and Upper Ordovician of the Central Basin, Tennessee /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487594970650115.

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Ishman, Scott E. "Quantitative analysis of Antarctic benthic foraminifera : application to paleoenvironmental interpretations /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487683049375259.

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Campbell, Matthew R. "Systematics and phylogenetics of the family Streptacididae (Gastropoda: Heterobranchia) from Devonian through Triassic marine strata." [Bloomington, Ind.] : Indiana University, 2004. http://wwwlib.umi.com/dissertations/fullcit/3162227.

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Abstract:
Thesis (Ph.D.)--Indiana University, Dept. of Geological Sciences, 2004.
Title from PDF t.p. (viewed Dec. 1, 2008). Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0172. Co-Chairs: N. Gary Lane; Lisa M. Pratt.
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Ahn, Soo Yeun. "Ediacaran-Cambrian Stratigraphy and Paleontology of Western Nevada and Eastern California." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275489532.

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Wellstead, Carl F. "Taxonomic revision of the Permo-Carboniferous lepospondyl amphibian families Lysorophidae and Molgophidae." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72041.

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Abstract:
The Lysorophia is an order of small, but extremely elongate and tiny-limbed aquatic lepospondyl amphibians existing from the Middle Pennsylvanian through the Lower Permian, primarily in North America. The order comprises one family, Cocytinidae, with three recognized species: Brachydectes newberryi (=Cocytinus gyrinoides), B. elongatus (=Lysorophus tricarinatus, partim) and Pleuroptyx clavatus. Other named species are considered Lysorophia, incertae sedis. Lysorophoids are distinguished by their fenestrated skulls, anteriorly sloping suspensoria, short mandibles (each bearing a lateral mandibular fenestra) and by extensive, well-ossified hyobranchial skeletons. Presacral vertebrae are holospondylous and number between 69 (B. newberryi) and 97 (B. elongatus). Neural arch halves are sutured at their midlines and to their centra. Aspects of lysorophoid anatomy, including the hyobranchial skeleton, suggest that the lysorophoids are neotenic.
While closely similar to one another, lysorophoid species are highly derived relative to other Paleozoic amphibians. They are most closely related to microsaurs, principally through the morphology of the craniovertebral articulation.
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