Rozprawy doktorskie na temat „Biochronology”
Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych
Sprawdź 37 najlepszych rozpraw doktorskich naukowych na temat „Biochronology”.
Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.
Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.
Przeglądaj rozprawy doktorskie z różnych dziedzin i twórz odpowiednie bibliografie.
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.
Pełny tekst źródłaMou, Yun. "Biochronology and magnetostratigraphy of the Pliocene Panaca Formation, southeast Nevada". Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/284594.
Pełny tekst źródłaBoudadi-Maligne, Myriam. "Les canis pléistocènes du sud de la France : approche biosystématique, évolutive et biochronologique". Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14126/document.
Pełny tekst źródłaQuaternary mammals form an important part of the material available for researchers focusing on paleoenvironmental reconstructions. Their study is thus often used to infer the environmental constraints that set the pace of human dispersal through the world. The genus Canis, main subject of this thesis, is present in Western Europe since its origin three million years ago. This continuous presence makes it a good candidate as a paleoenvironmental proxy, even when considering its ecological plasticity.The study of ten fossil sequences from Southern France spanning the Pleistocene, coupled with the analysis of the variability of modern populations, bring new insights on the evolution of the members of this lineage. Our results, once confronted to previous studies, allowed us to propose a new phylogeny. This new framework permits a better understanding of the apparition and disappearance of the different species, but also demonstrates the biochronological potential of the Canis genus. Three major phases have been identified in its evolutionary history. The transition between the different Canids is correlated with major events in the history of quaternary mammals (bioevent). Thus, its phylogeny can be used for biochronological purposes and has to be considered in the bigger debates that focus on the interactions between animal communities and human groups
Warr, Ginette Louise. "Chronology of the Western Limeworks australopithecine site, Makapansgat, South Africa : Magnetostratigraphy, biochronology and implications for hominin evolution". Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507590.
Pełny tekst źródłaTravouillon, Kenny James Biological Earth & Environmental Sciences Faculty of Science UNSW. "Palaeoecological and biochronological studies of Riversleigh, world heritage property, Oligo-Miocene fossil localities, north-western Queensland, Australia". Publisher:University of New South Wales. Biological, Earth & Environmental Sciences, 2008. http://handle.unsw.edu.au/1959.4/41305.
Pełny tekst źródłaBlaj, Teodora. "Late Eocene through Oligocene calcareous nannofossils from the paleo-equatorial Pacific Ocean – taxonomy, preservation history, biochronology and evolution". Doctoral thesis, Stockholm : Department of geology and geochemistry, Stockholm university, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-27600.
Pełny tekst źródłaChandler, Robert Baron. "High resolution ammonite biostratigraphy and biochronology of the Aalenian and Bajocian stages (Middle Jurassic) of Dorset and Somerset, UK". Thesis, University of Portsmouth, 2018. https://researchportal.port.ac.uk/portal/en/theses/high-resolution-ammonite-biostratigraphy-and-biochronology-of-the-aalenian-and-bajocian-stages-middle-jurassic-of-dorset-and-somerset-uk(ac6722c9-0bbc-44a5-a9d8-2f99fb46b75f).html.
Pełny tekst źródłaTOMIDA, YUKIMITSU. "SMALL MAMMAL FOSSILS AND CORRELATION OF CONTINENTAL DEPOSITS, SAFFORD AND DUNCAN BASINS, ARIZONA (GILA CONGLOMERATE, MAGNETOSTRATIGRAPHY, BIOCHRONOLOGY, BLANCAN AGE, TAXONOMY)". Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188105.
Pełny tekst źródłaMahboubi, Salamet. "Les rongeurs du miocène supérieur et terminal d'Afrique nord-occidentale : biochronologie, magnétostratigraphie, biogéographie et paléoenvironnements". Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT2323/document.
Pełny tekst źródłaNorth-western Africa, or the Maghreb, occupies a special geographic position, being an integral part of the African continent, but also consisting of an integrated northern Mediterranean area and of a semi-desert or desertic southern area. In the first part, paleomagnetic and biostratigraphic studies based on rodent faunas were carried on continental deposits of two Algerian basins (Tafna and El Eulma). The magnetostratigraphic study realized in this work allowed to estimate the age of various fossiliferous deposits, and to correlate them with various other Neogene basins of North Africa.In the second part, new paleontological prospections in the Aït Kandoula basin (Morocco) led to the discovery of three fossiliferous deposits dated back to late Miocene. These deposits delivered a rich micromammalian fauna associated with large mammal remains. The systematic study of small mammals and especially rodents of deposits from both AF12-1 and AF12-2 allowed identifying taxa which have affinities with those of south-western Europe. These two new localities provide new information on the exchanges of faunas between Africa and Europe. The genus Stephanomys is reported here for the first time in Morocco. The biochronologic and magnetostratigraphic studies provide reliable information for the chronology of various phases of faunal exchanges between north-western Africa and south-western Europe. Faunal exchanges took place 0.25 Ma before the Messinian Salinity Crisis. In addition, some of the taxa identified in AF12-2 (Myocricetodon, Protatera, Atlantoxerus), are useful as paleoenvironmental indicators, attesting warm and dry climatic conditions
Suraprasit, Kantapon. "Paléoenvironnements et reconstitutions paléoclimatiques du Pléistocène moyen de Thaïlande et leur impact sur la biodiversité et la distribution des espèces : la contribution de la faune de vertébrés du gisement de Khok Sung (Province du Khorat)". Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2285/document.
Pełny tekst źródłaThe Khok Sung sand pit, Nakhon Ratchasima province, has yielded the richest Pleistocene vertebrate fauna of Thailand, where more than a thousand fossil mammals and reptiles (skulls, isolated teeth, and postcranial remains) were recovered. The mammalian fauna, which is described in details hereby, consists of at least 18 identified species (12 genera), including a primate, proboscideans, rhinoceroses, suids, bovids, cervids, and carnivores, which are characterized by mostly extant elements associated to some completely and locally extinct taxa. The age of the Khok Sung fauna is tentatively attributed to the late Middle Pleistocene as either 188 or 213 ka, based on the paleomagnetic data and on the faunal comparisons. The Khok Sung mammal assemblage yields the Stegodon-Ailuropoda faunal association, most similar in composition to that of Thum Wiman Nakin, supporting the hypothesis that northeastern Thailand was a biogeographic gateway of the Sino-Malayan migration route from South China to Java. An analysis of stable carbon isotopes extracted from the tooth enamel of fossil ungulates reveals evidence of niche partitioning among megaherbivores and within cervids. The enamel carbonate d13C values also suggest a considerable amount of C4 plants in the dietary use of ruminants, indicating that grasslands had significantly expanded in Thailand at that time during which anthropic impacts on the ecosystems were absent. The stable oxygen isotope results, obtained from the serial sampling of large mammal enamel, combined with the cenogram analysis reflect significant seasonal variation in precipitations and temperature for Khok Sung, associated to a relatively humid climate
Pelletier, Maxime. "Evolution morphométrique et biogéographie des léporidés dans les environnements méditerranéens au Pléistocène : implications socio-économiques pour les sociétés humaines". Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0226.
Pełny tekst źródłaFossil remains of small mammals of the Leporidae family are abundant in numerous paleontological and archaeological deposits from the Quaternary. Many species are endemic to Western Europe, which makes them reliable markers of change in the ecosystems in which prehistoric human societies evolved. Paradoxically, morphological variability of leporids is still poorly understood and current phylogeny remains a subject of debate. This work focuses on the morphometric diversity of rabbits (Oryctolagus) and hares (Lepus) over nearly two million years of evolution. We applied osteometry and geometric morphometric analyzes to bone and dental remains of current populations and 73 fossil samples from perimediterranean regions (Spain, France, Italy, Portugal) during different moments of the Pleistocene. These data provide insights concerning Leporidae adaptations to environmental change as well as more general evolutionary trends. Here we propose a new phylogeny for the genus Oryctolagus and present different dispersion phases for Western Europe. Several population expansion events coupled with the recolonization of refuge areas and local extinctions are highlighted in response to global climate change. These results allow us to discuss the presence of these small game species in the environment and contribute to the debate concerning relations between leporids and human communities. Humans have regularly consumed leporids since at least the Middle Paleolithic. Their significant increase in the diet at the end of the Upper Paleolithic, however, cannot be explained solely by cognitive, cultural or economic changes but rather coincides with biogeographic variations of these species
Boulard, Christophe. "Biochronologie quantitative : concepts, méthodes et validité". Lyon 1, 1993. http://www.theses.fr/1993LYO10182.
Pełny tekst źródłaBoulard, Christophe. "Biochronologie quantitative : concepts, méthodes et validité /". Villeurbanne : Centre des sciences de la terre, 1994. http://catalogue.bnf.fr/ark:/12148/cb35685198s.
Pełny tekst źródłaBaloge, Pierre-Alain. "Biochronologie et dynamique évolutive des distichoceratinae (ammonitina, callovien)". Poitiers, 1999. http://www.theses.fr/1999POIT2377.
Pełny tekst źródłaEscudé, Elise. "Approche morphométrique du genre Arvicola (Arvicolinae, Rodentia) : systématique, variabilité morphologique et biochronologie". Paris, Muséum national d'histoire naturelle, 2007. http://www.theses.fr/2007MNHN0023.
Pełny tekst źródłaThe water vole, genus Arvicola, is used as a major biostratigraphic tool within the Quaternary. Specific determinations using the enamel quotient, SDQ, have identified many chronospecies within the species Arvicola cantiana. This study reappraises the Arvicola genus in term of morphodiversity and morphospace using outline analysis and linear measurements. These methods suggest that one single species of Arvicola, Arvicola cantiana, was present during the Pleistocene. The wide climatic tolerance of the species allows it to be widespread during the late Middle and Upper Pleistocene, in both glacial and interglacial periods. Our study displays the large phenotypic plasticity allows this species to resist to major environment changes. Thus, these results call into question the reliability of SDQ for specific determinations and throw doubt on the biochronological framework based on Arvicola
Mackaye, Hassane Taïsso. "Les proboscidiens du mio-pliocène du Tchad : biodiversité, biochronologie, paléoécologie et paléobiogéographie". Poitiers, 2001. http://www.theses.fr/2001POIT2279.
Pełny tekst źródłaGoillot, Cyrielle. "Biochronologie (vertébrés, pollen) et paléogéographie du bassin amazonien occidental au miocène moyen". Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1082/.
Pełny tekst źródłaThe study of vertebrate remains from the Fitzcarrald area (South Peru), and particularly that of astrapotheriid native ungulates, allowed characterising the "Fitzcarrald local fauna", restricting its stratigraphic range to the late Middle Miocene (Laventan), and showing that it evolved in the context of the Marine-like megalake Pebas complex. Faunal comparison with other South American vertebrate localities confirms the occurrence of environmental and/or geographical barriers between northern and southern South America at that time. Moreover, palynomorphs recovered in the Iquitos area (North Peru) have been interpreted as indicating a late Middle Miocene age. Their paleoenvironment was also determined as congruent to the Marine-like megalake Pebas complex. The biochronological dating and ecological interpretation of the Fitzcarrald local fauna confirm that the organization of the hydrographic network and of the current biodiversity of the Amazon basin implemented after the late Middle Miocene
Chaimanee, Jongkanjanasoontorn Yaowalak. "Les rongeurs du Plio-Pleistocène de Thai͏̈lande : systématique, phylogénie, biochronologie et paléoenvironnements". Montpellier 2, 1997. http://www.theses.fr/1997MON20037.
Pełny tekst źródłaVignaud, Patrick. "Les thalattosuchia, crocodiles marins du mésozoïque : systématique phylogénétique, paléoécologie, biochronologie et implications paléogéographiques". Poitiers, 1995. http://www.theses.fr/1995POIT2272.
Pełny tekst źródłaCoiffant-Martin, Brigitte. "Contribution des rongeurs du néogène d'Algérie à la biochronologie mammalienne d'Afrique nord-occidentale". Nancy 1, 1991. http://www.theses.fr/1991NAN10165.
Pełny tekst źródłaChavasseau, Olivier. "Les faunes miocènes de grands mammifères d'Asie du Sud-Est : biochronologie et biogéographie". Montpellier 2, 2008. http://www.theses.fr/2008MON20114.
Pełny tekst źródłaMassala, Antoine. "Le crétacé supérieur et le tertiaire du bassin côtier congolais : biochronologie et stratigraphie séquentielle". Dijon, 1993. http://www.theses.fr/1993DIJOS016.
Pełny tekst źródłaSarica-Filoreau, Nuran. "Faunes de rongeurs néogènes et quaternaires des grabens d'Anatolie occidentale : Systematique, biochronologie et implications tectoniques". Paris, Muséum national d'histoire naturelle, 2002. http://www.theses.fr/2002MNHN0021.
Pełny tekst źródłaThe western Anatolian extensional province is defined by 20 N-S, eight major E-W trending graben complexes. There has been a long-lasting controversy about the timing and causative mechanism of the western Anatolian grabens. The debate concerning the antiquity of the grabens is due to the continental nature of the graben infills in which the stratigraphy is based on lithological rather than palaeontological or radiometric control. This study aims to provide biochronological data using small mammal fossils to date the infills and associated faulting in five selected structural basins in the western Anatolian extensional province. Four-teen micromammal localities have been sampled. The systematics of the rodent groups with relatively good biochronological resolution is studied: Cricetidae (Cricetini and Cricetodontini), Spalacidae, Muridae and Arvicolidae. This monograph describes 36 species (seven new taxa) belonging to 15 genera (two new taxa). These localities, as well as several other previosly known localities have been correlated to the European MN zonation by using the evolutionary degree of rodent faunas. Two localities yielded early Miocene small mammals: one is situated along the Büyük Menderes Graben and the other is in the Demirci Graben. Three localities yielded middle Miocene small mammals: two situated along the Büyük Menderes Graben, and one in the Kale-Tavas Basin. Five localities yielded late Miocene small mammals, four of which are in the Bozdogan Graben and one in the Çine Basin. Four localities yielded Plio-Pleistocene rodents, three of which occur along the Büyük Menderes Graben and one along the Gediz Graben. Based on the rodent evidence, it is possible to propose a chronology for these deposits and to discuss their stratigraphic and tectonic implications. The previously proposed stratigraphies based on lithological control are misleading
Bachelet, Bernadette. "Muridae et Arvicolidae (Rodentia, Mammalia) du Pliocène du sud de la France : systématique, évolution, biochronologie". Montpellier 2, 1990. http://www.theses.fr/1990MON20299.
Pełny tekst źródłaMoreau, Marie-Gabrielle. "Paléomagnétisme en zônes orogéniques problèmes des réaimentations, applications du paléomagnétisme à la volcanologie et à la biochronologie". Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375998729.
Pełny tekst źródłaCrégut-Bonnoure, Evelyne. "Les ovibovini, caprini et ovini (Mammalia, Artiodactyla, Bovidae, Caprinae) du plio-pléistocène d'Europe occidentale : systématique, évolution et biochronologie". Lyon 1, 2002. http://www.theses.fr/2002LYO10001.
Pełny tekst źródłaOlive, Florence. "Evolution des grands Carnivores pliocènes et pléistocènes : Contribution à l'Eurasie et à l'Afrique : Systématique, Biochronologie, Paléobiogéographie et Paléoécologie". Paris, Muséum national d'histoire naturelle, 2004. http://www.theses.fr/2005MNHN0004.
Pełny tekst źródłaConstraints influencing morphological evolution are investigated through a biometrical analysis of the skull and teeth of modern carnivores. This study shows that phyletic constraints influences morphological adaptation to functionnal demands and that constraints can be evidenced by biometrical variability. Mechanisms of developmental and phyletic constraints and their possible implications in phylogenetic reconstructions are discussed. The biometrical approach can also be successfully used in a systematic point of view and is the basis of a comprehensive systematic revision of Plio Pleistocene larger carnivores of Europe with reference to Africa and Asia. Paleobiogeographical implications merges from this study and Plio Pleistocene dispersal events of larger carnivores are then discussed. Dispersal events mainly concerns Europe and Asia with sporadic immigration of african taxa into Europe. These dispersal from Asia are shown to be progressive and more continuous when biochronological resolution is achieved and this analysis emphasizes the stability and the homogeneity of the palearctic domain in Plio Pleistocene times. The evolution of communities is studied in the context of dispersal events. No clear links between evolution of communities and dispersal events of carnivores appears but community structure is influenced by climate changes. These changes are less marked in Africa
Dikouma, Mamadou Sougou. "Fluctuations du niveau marin au Maastrichtien et au Paléocène dans le Bassin intracratonique des Iullemmeden (Niger) : biochronologie et dynamique des corps sédimentaires". Dijon, 1990. http://www.theses.fr/1990DIJOS004.
Pełny tekst źródłaCoster, Pauline. "Contribution de la magnétostratigraphie et de la biochronologie à l'histoire évolutive des primates : application au Paléogène continental d'Afrique du Nord et d'Asie du Sud-Est". Poitiers, 2010. http://theses.univ-poitiers.fr/26562/2010-Coster-Pauline-These.pdf.
Pełny tekst źródłaDuring the past decade, new fossil discoveries from the African Paleogene and the Asian Neogene have provided new data that help reconstructing the early evolutionary history of several groups of mammals, including primates. The Asian and African continents have been both considered as major centres of evolution and diversification of primate groups during the Tertiary. However, understanding the early evolutionary history of these groups and the modes and routes of dispersal between these two landmasses have been hindered by a lack of consensus on both the timing and biogeography of their origins. New chronological data are absolutely required to provide a precise temporal framework, crucial for a better understanding of the early Tertiary emergence, diversification and paleobiogeographical history of the Asian and African groups of primates. The age estimates, provided by magnetostratigraphic and biochronologhical studies, have precised the age of several localities which document the poorly known Paleogene African mammal evolutionary history and contribute to illuminate the antiquity and the pattern of anthropoid radiation in Africa. This work, based on paleomagnetic and mammalian biochronological data, also presents refined chronostratigraphic analyses of the Khoratpithecus-bearing localities of Thailand and Myanmar. Providing a temporal framework for these deposits allows more precise correlations with other Neogene Asian hominoid localities, and permits a better comprehension of the evolution and paleobiogeographical patterns of Miocene South Asian mammalian faunas
Clauser, Sébastien. "Etudes stratigraphiques du campanien et du maastrichtien de l'Europe occidentale, Côte basque, Charentes (France), Limbourg (Pays-Bas) biochronologie, magnétostratigraphie, stratigraphie isotopique, radiochronologie comparées du domaine océanique et des régions stratotypiques /". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376127647.
Pełny tekst źródłaClauser, Sébastien. "Etudes stratigraphiques du Campanien et du Maastrichtien de l'Europe occidentale : Côte Basque, Charentes (France) ; Limbourg (Pays-Bas) : biochronologie, magnétostratigraphie, stratigraphie isotopique, radiochronologie comparées du domaine océanique et des régions stratotypiques : contribution à la paléoclimatologie du Crétacé supérieur". Paris 6, 1988. http://www.theses.fr/1988PA066151.
Pełny tekst źródłaClauser, Sébastien. "Etudes stratigraphiques du campanien et du maastrichtien de l'Éurope occidentale : Côte-Basque, Charentes (France), Limbourg (Pays-Bas) : biochronologie, magnétostratigraphie, stratigraphie isotopique, radiochronologie comparées du domaine océanique et des régions stratotypiques : contribution à la paléoclimatologie du crétacé supérieur /". Orléans : Éd. BRGM, 1994. http://catalogue.bnf.fr/ark:/12148/cb35727434s.
Pełny tekst źródłaIANNUCCI, ALESSIO. "Late Miocene to Quaternary European Suidae: evolution and biochronology". Doctoral thesis, 2022. http://hdl.handle.net/11573/1623532.
Pełny tekst źródłaSuidae (Mammalia, Artiodactyla) are a diverse group of large mammals, today widely distributed in Africa and Eurasia, but also including a heterogeneous array of extinct forms. Most extant suids are fast-breeding and highly adaptable species. This likely explains why several lineages experimented rapid (over the course of geological time) episodes of diversification which, in addition to the importance for the evolution of the group, are of great interest for biochronological correlations and paleoenvironmental reconstructions. These applications are especially developed in the African Neogene-Quaternary, where fossil suids assume a fundamental role in the relative dating of several key sites for human evolution. In Europe, this potential is relatively poorly exploited, partly due to inherent differences between species, but mostly, and somehow paradoxically, because historical recoveries often lack appropriate controls. Indeed, even though suids are of great possible value for many applications, a drawback of the overall plesiomorphic morphology and plastic adaptability of suids is that evolutionary changes need to be tested within well chronologically and geographically constrained settings. In contributing to the general goal of resolving the evolutionary relationships and developing a biochronological scheme for Neogene-Quaternary suids of Europe, a collection of case studies is presented in this thesis, which are or will be soon published as a series of independent papers. The results of this thesis confirm and discuss, at different chronological, geographical, and phylogenetic scales, the biochronolocical and paleoecological value of European suids. In particular for: 1) the so-called Vallesian crisis ~9.7 Ma; 2) the Miocene-Pliocene (Turolian-Ruscinian) transition ~5.3 Ma; 3) the late Early Pleistocene, in pre- and post-Epivillafranchian faunas ~1.2–0.8 Ma; 4) Middle to Late Pleistocene environmental and climatic fluctuations. Moreover, analyses on neurocranial anatomy and ecomorphology yielded unexpected results, opening promising lines for future research.
Nadaraju, Genga T. "Triassic-Jurassic biochronology of the eastern Iskut River map area, northwestern British Columbia". Thesis, 1993. http://hdl.handle.net/2429/2606.
Pełny tekst źródłaJass, Christopher Nathan 1970. "New perspectives on Pleistocene biochronology and biotic change in the east-central Great Basin: an examination of the vertebrate fauna from Cathedral Cave, Nevada". Thesis, 2007. http://hdl.handle.net/2152/3612.
Pełny tekst źródłaMurray, Lyndon Keith. "Effects of taxonomic and locality inaccuracies on biostratigraphy and biochronology of the Hueso and Tapiado formations in the Vallecito Creek-Fish Creek section, Anza-Borrego Desert, California". 2008. http://hdl.handle.net/2152/15340.
Pełny tekst źródłatext
Boudadi-Maligne, Myriam. "LES CANIS PLEISTOCENES DU SUD DE LA FRANCE : APPROCHE BIOSYSTEMATIQUE, EVOLUTIVE ET BIOCHRONOLOGIQUE". Phd thesis, 2010. http://tel.archives-ouvertes.fr/tel-00908031.
Pełny tekst źródła