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Journal articles on the topic 'Paleontology – Paleogene'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Herrera, Claudia, Graciela Esteban, Daniel Alfredo Garcia-Lopez, Virginia Deraco, Judith Babot, Cecilia del Papa, Sara Bertelli, and Norberto Giannini. "New Cingulata (Mammalia, Xenarthra) from the Upper Lumbrera Formation (Bartonian, middle Eocene), Salta Province, Argentina." Revista Brasileira de Paleontologia 24, no. 3 (September 26, 2021): 236–44. http://dx.doi.org/10.4072/rbp.2021.3.05.

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We describe isolated remains of a Paleogene cingulate from El Simbolar locality, Upper Lumbrera Formation (Bartonian), southern Salta Province, northwestern Argentina. The material consists of numerous fixed, movable, and caudal sheath osteoderms. The specimen has large-sized osteoderms, with a lageniform main figure, as in Utaetus buccatus, U. laxus, U. argos, ?U. deustus, Punatherium catamarcensis, and the basal euphractin Archaeutatus. The combination of morphological characters, in addition to its large size, allows us to recognize a new species of “Utaetini” for the Paleogene of northwestern Argentina. This new species of ?Utaetus represents the oldest record of Euphractinae in this region, and strengthens the endemic condition of its Paleogene faunas. Keywords: Cingulata, osteoderms, El Simbolar, Paleogene, Salta, Argentina.

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2

Reguant, Salvador. "Bryozoa and stratigraphy in Paleogene times through the study of Paleogene species from Europe." Spanish Journal of Palaeontology 10, no. 1 (August 9, 2022): 117. http://dx.doi.org/10.7203/sjp.24107.

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3

Menkveld-Gfellner, Ursula, and Danielle Decrouez. "The Paleogene of Masirah Island (Sultanate of Oman)." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 234, no. 1-3 (December 22, 2004): 311–33. http://dx.doi.org/10.1127/njgpa/234/2004/311.

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4

Gingerich, Philip D. "Paleogene vertebrates and their response to environmental change." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 234, no. 1-3 (December 22, 2004): 1–23. http://dx.doi.org/10.1127/njgpa/234/2004/1.

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5

Alegret, Laia, Ignacio Arenillas, José A. Arz, and Eustoquio Molina. "Foraminiferal event-stratigraphy across the Cretaceous/Paleogene boundary." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 234, no. 1-3 (December 22, 2004): 25–50. http://dx.doi.org/10.1127/njgpa/234/2004/25.

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6

Pearson, Paul N., Eleanor John, Bridget S. Wade, Simon D'haenens, and Caroline H. Lear. "Spine-like structures in Paleogene muricate planktonic foraminifera." Journal of Micropalaeontology 41, no. 2 (August 1, 2022): 107–27. http://dx.doi.org/10.5194/jm-41-107-2022.

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Abstract. Muricate planktonic foraminifera comprise an extinct clade that was diverse and abundant in the Paleogene oceans and are widely used in palaeoclimate research as geochemical proxy carriers for the upper oceans. Their characteristic wall texture has surface projections called “muricae” formed by upward deflection and mounding of successive layers of the test wall. The group is generally considered to have lacked “true spines”: that is, acicular calcite crystals embedded in and projecting from the test surface such as occur in many modern and some Paleogene groups. Here we present evidence from polished sections, surface wall scanning electron microscope images and test dissections, showing that radially orientated crystalline spine-like structures occur in the centre of muricae in various species of Acarinina and Morozovella and projected from the test wall in life. Their morphology and placement in the wall suggest that they evolved independently of true spines. Nevertheless, they may have served a similar range of functions as spines in modern species, including aiding buoyancy and predation and especially harbouring algal photosymbionts, the function for which we suggest they probably first evolved. Our observations strengthen the analogy between Paleogene mixed-layer-dwelling planktonic foraminifera and their modern spinose counterparts.

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7

Parsons, Marion Grace, and Geoffrey Norris. "Paleogene fungi from the Caribou Hills, Mackenzie Delta, northern Canada." Palaeontographica Abteilung B 250, no. 4-6 (August 6, 1999): 77–167. http://dx.doi.org/10.1127/palb/250/1999/77.

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8

Schweitzer, Carrie E., Matúš Hyžný, and Rodney M. Feldmann. "New Paleogene and Neogene decapod crustaceans (Axiidea, Brachyura) from Venezuela." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 300, no. 3 (June 28, 2021): 245–66. http://dx.doi.org/10.1127/njgpa/2021/0988.

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9

Melendi, Daniel L., Laura H. Scafati, and Wolfgang Volkheimer. "Palynostratigraphy of the Paleogene Huitrera Formation in N-W Patagonia, Argentina." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 228, no. 2 (May 28, 2003): 205–73. http://dx.doi.org/10.1127/njgpa/228/2003/205.

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10

Salahi, A., and A. Ghaderi. "Paleogene Molluscan Communities in the Kopet-Dagh Basin, NE Iran." Paleontological Journal 55, no. 10 (December 2021): 1141–57. http://dx.doi.org/10.1134/s0031030121100075.

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11

Self-Trail, Jean M., David K. Watkins, James J. Pospichal, and Ellen L. Seefelt. "Evolution and taxonomy of the Paleogene calcareous nannofossil genus Hornibrookina." Micropaleontology 68, no. 1 (2022): 85–113. http://dx.doi.org/10.47894/mpal.68.1.04.

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The genus Hornibrookina consists of enigmatic calcareous nannofossils that first appeared shortly after the K-Pg mass extinction. Due to their relative paucity in most published sections, specimens of this genus have not been previously studied in detail and their paleobiogeographic preferences and evolutionary history have been poorly understood. Biostratigraphic and morphometric analyses of Hornibrookina specimens from outcrops and cores from the Atlantic Ocean, the North Sea, the Southern Ocean, the Indian Ocean, North America, South America, Africa, and New Zealand resulted in a comprehensive and detailed documentation of this group of calcareous nannofossils. Biostratigraphic ranges for each species are refined and a hypothetical evolutionary lineage for this genus is proposed. Two new species (Hornibrookina gracila and Hornibrookina indistincta), two new combinations (Hornibrookina elegans and Hornibrookina australis arca) and one new subspecies (Hornibrookina australis australis) are described. Morphometric analyses prove that Hornibrookina edwardsii and Hornibrookina teuriensis are distinctly different species with biostratigraphically useful ranges. Hornibrookina apellanizii is shown to be invalid.

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12

Schlagintweit, Felix. "Taxonomic use of the exoskeleton in the family Orbitolinidae (Foraminifera): Aplea for a uniform Cretaceous/Paleogene approach." Micropaleontology 66, no. 1 (2020): 75–81. http://dx.doi.org/10.47894/mpal.66.1.03.

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Based on the distinctly higher number of species of Orbitolinidae in the Cretaceous compared to the Paleogene, the former have witnessed much more taxonomic analyses. Although, there has been a "lively" debate among specialists working on Cretaceous taxa, it is rather broad consensus that the presence/absence of horizontal partitions (= rafters; part of exoskeleton) in the marginal zone is a criterion of specific rank. Recently, however, another taxonomic concept has been used for Paleogene Orbitolinidae by giving this trait generic rank (Fallotella vs. Pseudofallotella). If applied to the Cretaceous, this approach would result in artificial groups and the creation of several new genera for currently used species that both include species with and without rafters (Coskinolinella, Heterocoskinolina, Montseciella, Paracoskinolina, Praedictyorbitolina, Simplorbitolina, Valserina). The present contribution is a plea for a uniform taxonomic approach, preferring the simpler, longer, wider and more natural usage of the "Cretaceous approach". Further difficulties on the taxonomical ranking of Orbitolinidae features are due to their fossil nature (extinct group), as no modern representatives are available for comparisons. This fact also speaks for the use of a pragmatic and uniform approach.

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13

Babazadeh, Seyed Ahmad, and Dominique Cluzel. "Biostratigraphy and paleoenvironmental significance of Paleogene foraminiferal assemblages from Dashte Zari area in High Zagros, West Iran." Revista Brasileira de Paleontologia 25, no. 3 (November 26, 2022): 189–207. http://dx.doi.org/10.4072/rbp.2022.3.03.

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The Paleogene carbonate deposits of Pabdeh and Jahrum formations are widespread from the northwest (Dashte Zari area) to the southwest of the Shahrekord region in the High Zagros Mountains of Iran and record the lateral and upward transition from open marine into the shallow water environment. The Pabdeh Formation shows a succession of open marine pelagic and hemipelagic limestone, argillaceous limestone, and argillaceous chert. It consists of planktonic wackestone, pellet-planktonic wackestone, mudstone with planktonic foraminifera, and radiolarian siliceous wackestone, which accumulated within the Zagros Foreland Basin. The planktonic foraminifers are assigned to the Late Paleocene–Late Eocene and correspond to subtropical and tropical Zones P4b–E15. The Jahrum Formation is represented by bioclast-bearing limestone and calcarenite. It consists of benthic foraminiferal wackestone, benthic foraminiferal-red algal packstone, and bioclast-intraclast packstone deposited in a shallow platform environment. The Jahrum Formation is inter-fingered in the upper part of the Pabdeh Formation and finally overlies it conformably during the Bartonian–Priabonian. Shallowing and off-lap relationships record basin shrinking, while repeated inter-fingering signals moderate tectonic subsidence. Both formations are disconformably covered by the Late Oligocene–Miocene Asmari Formation. Keywords: biostratigraphy, Pabdeh Formation, Zagros, Paleogene, Iran.

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14

Reguant, Salvador. "On chronostratigraphic calibration using Bryozoa: suggestions from two Paleogene case studies." Spanish Journal of Palaeontology 15, no. 1 (December 19, 2021): 71. http://dx.doi.org/10.7203/sjp.15.1.22086.

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The bryozoan species present in each Paleocene and Eocene chronostratigraphic unit of the Atlantic and Gulf Coastal Plains in North America, and the Paris Basin in France are analysed. The comparison between species exclusive to each unit considered (EX), non-exclusive species, but appearing for the first (FA) or last time (LA), species existing before and after the unit considered (BA), and, finally, the total number of species present (T), shows the chronostratigraphic discriminating value of this fauna within the Paleogene. The same analysis was previously applied to bryozoan Paleocene and Eocene families and genera, according to the inormation. It is also interesting to note the significant renewal of bryozoan fauna in both basins during the Middle Eocene.

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15

Pirkenseer, Claudius, and Jean Pierre Berger. "Paleogene Ostracoda from the southern Upper Rhine Graben: Taxonomy, palaeoecology and palaeobiogeography." Palaeontographica Abteilung A 295, no. 1-6 (December 13, 2011): 1–152. http://dx.doi.org/10.1127/pala/295/2011/1.

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16

Boukhary, Mohamed, Mohamed El Amin Bassiouni, Bahay Issawi, Safaa Sharabi, and Hesham Mansour. "Maastrichtian–Early Paleogene Ostracoda from the Kharga Oasis and the Nile Valley, Egypt." Micropaleontology 59, no. 2-3 (2013): 223–48. http://dx.doi.org/10.47894/mpal.59.2.11.

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The present work deals with the stratigraphy, lithological characteristics, planktonic foraminiferal zonation and the ostracods of the Upper Cretaceous (Maastrichtian) - Paleocene rocks in the Kharga Oasis and the lower paleogene of Gebel Dandara section, Nile Valley, Egypt. The planktonic foraminifera and ostracods were obtained from twostratigraphic sections:Ain Dabadib and N. AinAmurfrom the area NorthWest of the Kharga Oasis, Egypt. Thirty seven planktonic foraminiferal and twelve ostracod species were identified, among the latter, 1 genus: Aegyptoleberis Boukhary, Bassiouni and Sharabi n.gen. (Type species: Cythereis coronata Esker 1968) and 2 species: Cytheropteron dakhlaensis Boukhary and Bassiouni n.sp., and Ordonyia dabadibensis Boukhary and Sharabi n. sp., from the Late Paleocene are believed to be new. Among the association, there are species which are identical with those described from Tunisia by Esker (1968) and Said (1978) and from Jordan by Bassiouni (1971). The planktonic foraminifera were used for the biostratigraphic control. Future studies may prove these ostracod assemblages to be of index value and valid for the Mesogean Paleocene in the neritic provinces in North Africa and Middle East.

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17

Schlagintweit, Felix, and Koorosh Rashidi. "Neodubrovnikella maastrichtiana n. gen., n. sp., a new larger agglutinated benthic Foraminifera from the Maastrichtian of Iran." Micropaleontology 64, no. 6 (2018): 507–13. http://dx.doi.org/10.47894/mpal.64.6.12.

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A new larger benthic foraminifera is here described as Neodubrovnikella maastrichtiana n. gen., n. sp. from thin-sections of the upper Maastrichtian Tarbur Formation of southwestern Iran (Zagros Zone). This Maastrichtian genus is homeomorphic to the Middle Jurassic Dubrovnikella Schlagintweit and Velic. Differences are due to the type of foramina and the coarseness/fineness of the pores in the wall. Neodubrovnikella n. gen. represents the second taxon ascribed to the Biokovinidae besides Zagrosella Schlagintweit and Rashidi due to the presence of a pseudokeriothecal wall texture. Representatives of this family exhibited a latest Cretaceous "revival" before finally becoming extinct at the K/Pg boundary. In agglutinating conical forms however the pseudokeriotheca may be still present in the Early Paleogene.

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18

Clyde, W. C., J. M. Krause, F. De Benedetti, J. Ramezani, N. R. Cúneo, M. A. Gandolfo, P. Haber, C. Whelan, and T. Smith. "New South American record of the Cretaceous–Paleogene boundary interval (La Colonia Formation, Patagonia, Argentina)." Cretaceous Research 126 (October 2021): 104889. http://dx.doi.org/10.1016/j.cretres.2021.104889.

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19

Anan, Haidar Salim. "On the Variability of Benthic Foraminiferal Species of the Genus Ramulina in the Tethys." Journal of Foraminiferal Research 52, no. 3 (July 1, 2022): 133–39. http://dx.doi.org/10.2113/gsjfr.52.3.133.

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ABSTRACT Eight small benthic foraminiferal species of the Lagenid genus Ramulina are common in the Late Cretaceous and Paleogene from some Tethyan localities: North Atlantic (USA, Mexico, Caribbean); Europe (France, Germany, Czech Republic, Bulgaria, Ukraine); Northeast Africa (Egypt); Southwest Asia (Jordan, UAE, Iran, Turkmenia); and South Asia (Pakistan). These species are: Ramulina arkadelphiana, R. elkhoudaryi, R. elongata, R. futyani, R. globulifera, R. navarroana, R. ornata, and R. pseudoaculeata. Another four identified species are believed here to be new: Ramulina ismaili, R. orabii, R. plummerae, and R. salahii.

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20

Granier, Bruno, and Philippe Lapointe. "The KALKOWSKY Project - Chapter I. Ooid - stromatoid relationship in a stromatolite from the Maiz Gordo Fm (Argentina)." Carnets de géologie (Notebooks on geology) 21, no. 9 (June 14, 2021): 193–201. http://dx.doi.org/10.2110/carnets.2021.2109.

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The comparative study of oolites and stromatolites demonstrates striking similarities between KALKOWSKY's German Triassic material (drawn from the scientific literature) and our Argentinian Paleogene material. However, the latter better illustrates that ooids and stromatoids, hence oolites and stromatolites, which share the same dual (i.e., organic and mineral) nature, are merely the end-members of a continuum of microbial carbonate structures.

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21

Alexeev, A. V. "New jewel beetles (Coleoptera: Buprestidae) and similar beetles from the Cretaceous and Early Paleogene of Asia." Paleontological Journal 42, no. 1 (January 2008): 53–59. http://dx.doi.org/10.1134/s0031030108010085.

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22

Vieira, Manuel, and Salih Mahdi. "New Late Cretaceous to earliest Paleogene (Campanian–Danian) dinoflagellate cysts from the Møre Basin, offshore Norway." Palynology 46, no. 2 (December 28, 2021): 1–19. http://dx.doi.org/10.1080/01916122.2021.2006817.

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23

Verdenius, Jacob G., and Michael A. Kaminski. "Hyperammina grosserugosa, nom. nov., a replacement name for Hyperammina rugosa Verdenius and Van Hinte 1983." Micropaleontology 66, no. 6 (2020): 572. http://dx.doi.org/10.47894/mpal.66.6.07.

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In 1983 one of us (JGV) in collaboration with J. Van Hinte described the new foraminiferal species Hyperammina rugosa from the Oligocene of DSDP Hole 345 in the Norwegian Sea. It was also reported from the Eocene at Site 346, Lower Miocene at Site 348, and the Oligocene-Miocene at Site 348 (Verdenius and Van Hinte 1983). The species Hyperammina rugosa was subsequently reported throughout the North Sea, Norwegian Sea, and Barents Sea region (Kaminski and Gradstein 2005). The species has been reported more recently from the Miocene of the Fram Strait region and the Central Arctic Ocean by Kaminski et al. (2005, 2009), from the Upper Cretaceous (Santonianâ€“Campanian) of the southern Norwegian Sea by Setoyama and Kaminski (2015), and from the Upper Cretaceous to Paleogene of the Outer Carpathian region by Bindiu et al. (2019) and by Bubik (2019).

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24

Iakovleva, A. I., and G. N. Aleksandrova. "The Paleogene of the Cis-Donets Monocline and Its Palynological Characteristics." Stratigraphy and Geological Correlation 29, no. 1 (January 2021): 65–103. http://dx.doi.org/10.1134/s0869593821010093.

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25

Hrabovský, Juraj, and Dušan Starek. "Priabonian non-geniculate coralline algae from the Central Carpathian Paleogene Basin." Carnets de géologie (Notebooks on geology) 22, no. 12 (August 1, 2022): 567–617. http://dx.doi.org/10.2110/carnets.2022.2212.

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Encrusting coralline algae are important rock-building organisms of the lower Priabonian limestones from the Central Carpathian Paleogene Basin. Despite the effort of early palaeontologists, former classifications lacked many diagnostic characteristics and modern taxonomic concepts, which hinders their use for modern palaeontological interpretations. The situation is further complicated as recent DNA analyses of extant coralline algae highlight the limits of the morpho-anatomical classification and identify many coralline algal genera which can also be recognized in the fossil record. Because palaeontology deals exclusively with the morpho-anatomical characteristics, a synthesis of the new discoveries in molecular phylogenetic analyses with morphology-based palaeontological classifications is necessary. Our palaeontological study based on published investigations on coralline molecular genetics enabled: 1) the identification of seventeen coralline algal morphological species grouped in six genera: Sporolithon lugeonii, Sporolithon nummuliticum, Sporolithon sp. 1, Sporolithon sp. 2, Lithothamnion camarasae, Lithothamnion cf. corallioides, Lithothamnion prascoi, Lithothamnion cf. ramosissimum, Lithothamnion roveretoi, Lithothamnion sp., Phymatolithon sp., Mesophyllum fructiferum, Mesophyllum cf. engelhartii, Mesophyllum sp., Chamberlainium lemoinei, Lithoporella melobesioides, and Lithoporella cf. minus ; 2) the description of Chamberlainium lemoinei (Miranda) comb. nov. known from the Bartonian, and 3) the identification of a unique encrusting coralline alga tentatively assigned to the genus Lithothamnion.

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26

Naidu, Roselyn, Murray Ford, Paul Kench, Pamela Hallock, and Rajesh Prasad. "Growth and Fecundity of Marginopora Vertebralis and Amphistegina Lobifera in Laboratory Culture." Journal of Foraminiferal Research 51, no. 3 (July 31, 2021): 210–24. http://dx.doi.org/10.2113/gsjfr.51.3.210.

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ABSTRACT The shells of large benthic foraminifers (LBF) are key contributors to the development and maintenance of coastal landforms in the Pacific as well as to Paleogene and Miocene carbonates deposited along the Neotethys Seaway and tropical Pacific islands. The current study assessed growth and fecundity of two species, Marginopora vertebralis and Amphistegina lobifera, collected from sites in Viti Levu, Fiji, based on shell diameter, shell weight, fecundity, and survival. Specimens were cultured without supplemental nutrients or food for 15 months under controlled laboratory conditions. Physicochemical parameters, including salinity, alkalinity, pH, and temperature, varied by <5% throughout the experiment. Asexual reproduction by M. vertebralis produced ∼270 offspring per brood, while A. lobifera produced ∼500 offspring per brood. The minimum size at reproduction for M. vertebralis was 15 mm, and A. lobifera reproduction occurred at diameters ≥0.9 mm. These observations were consistent with those of previous studies that predicted asexual fecundity related to parent size. Four non-linear mathematical functions (exponential, Gompertz, logistic, and von Bertalanffy) were compared to describe the age-weight relationship for each species. Results revealed that the logistic model best fits M. vertebralis growth, and von Bertalanffy model best fits A. lobifera growth. The growth model for A. lobifera predicted trends in juvenile growth and maximum size consistent with a previously published von Bertalanffy model based on cultures in which the foraminifers were provided nutrient sources and grew much faster than those observed in this study. These observations support published hypotheses that many LBF are exceptionally well-adapted to extreme oligotrophy, a characteristic that accounted for their dominance as carbonate producers in the Paleogene and Miocene of the Neotethys and Pacific islands.

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27

Ossó, Àlex, Matúš Hyžný, Yawovi Zikpi Amoudji, Koffi Evenyon Kassegne, Ampah Kodjo C. Johnson, Pauline Yawoa D. Da Costa, Claire Bondant, Vincent Perrier, Lionel Hautier, and Guillaume Guinot. "Pleolobites (Decapoda: Brachyura) from the Paleogene of Africa revisited, with implications on taxonomy of fossil portunoid crabs." Annales de Paléontologie 108, no. 1 (January 2022): 102541. http://dx.doi.org/10.1016/j.annpal.2022.102541.

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28

Antonietto, Lucas S., Jeffrey G. Eaton, and Lisa E. Park Boush. "A newly found ostracod fauna from the Paleocene? - Eocene Claron Formation at Sweetwater Creek, Utah, USA with description of a new species." Micropaleontology 68, no. 4 (2022): 375–88. http://dx.doi.org/10.47894/mpal.68.4.02.

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A new ostracod fauna was recovered and described from the Paleogene Claron Formation, famous worldwide for the "pink cliffs" of Bryce Canyon National Park and Cedar Breaks NationalMonument, in Utah, USA. The ostracods are from a section located along Sweetwater Creek in Garfield County that also contains gastropods, ichnofossils, algal impressions, charophytes and vertebrates. This diverse, freshwater lacustrine ostracod fauna contains the following 12 species: Paracandona rosaepraeceps n. sp., Candona artesensis, Cyclocypris (Laevicypris) eaglespringsensis, Cyclocypris (Leucocypris) trapezoidalis, Cypris pagei, Scottia subquadrata, Timiriasevia changzhouensis, Heterocypris whiteriverensis? Cypris? sp. 1, Djungarica? sp. 1, Gen. aff. Bisulcocypridea sp. 1 and Pseudocandona sp. 1. The presence of a mixed assemblage of strictly early Eocene ostracod species and others with a wider stratigraphic distribution suggests that the base of the Sweetwater Creek section might extend into the Paleocene, which agrees with previous observation of Paleocene charophyte taxa in basal strata of the Sweetwater Creek section.

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29

Yu, Tingting, He Wang, Yanan Fang, Rodrigo B. Salvador, Sha Li, Edmund A. Jarzembowski, Han Yu, and Haichun Zhang. "Non-marine gastropods from the Cretaceous–Paleogene transition in the Pingyi Basin, eastern China." Proceedings of the Geologists' Association 133, no. 1 (February 2022): 40–46. http://dx.doi.org/10.1016/j.pgeola.2021.10.003.

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30

Kuzmina, O. B., N. K. Lebedeva, and N. E. Shchulkina. "Palynostratigraphy of the Cretaceous and Paleogene Sediments of Chelyabinsk Oblast, South Transurals." Stratigraphy and Geological Correlation 29, no. 2 (March 2021): 215–40. http://dx.doi.org/10.1134/s0869593821020040.

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31

Anan, Haidar Salim. "PALEONTOLOGY AND EVOLUTIONARY LINEAGES OF THE DIAGNOSTIC BENTHIC FORAMINIFERAL GENUS ORTHOKARSTENIA." Geological Behavior 6, no. 1 (2022): 48–52. http://dx.doi.org/10.26480/gbr.01.2022.48.52.

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This work is focused on the members of the Late Cretaceous-Early Paleogene (K-Pg) diagnostic benthic foraminiferal genus Orthokarstenia which is regionally important in paleontology and stratigraphic correlations. The large number of tests available and the rapid morphologic changes, offer an opportunity to study evolutionary changes in these foraminiferal taxa over a time span of about 25 m. y. (75-50 Ma). Six species of the genus Orthokarstenia are presented: O. applinae, O. eleganta, O. esnehensis, O. higazyi, O. nakkadyi and O. oveyi, which were recorded in eight localities in the Southern Tethys: Nigeria, Tunisia, Egypt (central and north Africa), Jordan, Saudi Arabia, UAE, Iran and Pakistan (southwest Asia). Evolutionary changes of them are indicated by such criteria, such as changes in the test-size, chambers arrangement, type of sutures, periphery or surface ornamentation. These changes help to define the major faunal change of the Campanian/Maastrichtian (C/M) boundary, K/Pg boundary, and can used in biostratigraphic subdivisions and correlations based on benthic foraminifera, beside planktic foraminiferal zonation.

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32

Hassan, Hatem F., and Mohamed O. Abouelresh. "The effect of Early Paleogene sea-level change on biostratigraphy and paleoenvironmental settings: An example from north Sinai, Egypt." Micropaleontology 65, no. 2 (2019): 127–43. http://dx.doi.org/10.47894/mpal.65.2.03.

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This study investigates the imprints of early Paleogene sea level changes on biostratigraphy and paleoenvironmental conditions at Gebel Falig in North Sinai. Biostratigraphic analysis has allowed the recognition of 17 planktic biozones (Paâ€“E5) ranging from Early Danian to Ypresian, representing continuous sedimentation despite the absence of Zone PO. Based on%P, four sea-level transgression cycles of the 3rd order have been recognized, the first cycle, spanning from Pa to P3a, is bounded by shallowing phases at the K/Pg andD/S boundaries, where sea level reached amaximum at the P1c/P2 subzonal boundary with a minor eurybathic shift in the upper part of subzone P1a. A gradual buildup of the faunal community in this cycle occurred within oligotrophic conditions. The second cycle includes subzone P3b, representing a middle neritic environment with a recovery of the benthic community and return of oligotrophic conditions. The third transgressive cycle extends from the upper part of Subzone P3b to Zone P5.Carbonate dissolution obliterated most of the benthic and planktic forms within Zone P5, but the occurrence of Kolchidina paleocenica within this interval may suggest a shallow marine environment. The Paleocene oligotrophic conditions ended abruptly with the extinction of Angulogavelinella avnimelechi at the P/E boundary. The last cycle extends from the base of Zone E1 to Zone E5. It is characterized by high %P and very low benthic diversity, which may have been due to environmental stress. It is concluded that shallowing and surface eutrophication due to upwelling are the main factors controlling the development of diagnostic Early Eocene assemblages in the study area and at other sites on the southern Tethys margin.

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Schwimmer, David R. "Presentation of the Harrell L. Strimple Award of The Paleontological Society to Gerard R. Case." Journal of Paleontology 67, no. 4 (July 1993): 692–93. http://dx.doi.org/10.1017/s0022336000025117.

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I have known Gerard R. Case for only twelve among his thirty-odd years of work in vertebrate paleontology, but from that relatively limited vantage point, I'd say this year's awardee is a phenomenon, in most of the literal meanings of that word. Jerry is simultaneously an amateur and the prime North American authority on Mesozoic and Paleogene shark taxonomy. That fact says much about Jerry's energies and dedication, and perhaps a bit about the state of our science; nevertheless, I am very pleased that The Paleontological Society has granted the award to him this year for many reasons, not the least of which is that Jerry will now stop asking me whether or not “they're going to give him the award while he's still alive.”

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El-Sabbagh, A. M., M. I. A. Ibrahim, and H. P. Luterbacher. "Planktic foraminiferal biostratigraphy, extinction patterns and turnover during the Campanian-Maastrichtian and at the Crataceous/Paleogene (K/Pg) boundary in the Western Central Sinai, Egypt." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 234, no. 1-3 (December 22, 2004): 51–120. http://dx.doi.org/10.1127/njgpa/234/2004/51.

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Gladenkov, Yu B. "Marine Paleogene of the Koryak Upland, Northeast Asia: Stratigraphy, Mollusks, Correlation, and Geological Events." Stratigraphy and Geological Correlation 29, no. 3 (May 2021): 348–67. http://dx.doi.org/10.1134/s0869593821030023.

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36

Matsumaru, Kuniteru. "Larger foraminiferal biostratigraphy of the upper Cretaceous (Campanian) to Paleogene (Lutetian) sedimentary rocks in the Haymana and Black Sea regions, Turkey." Micropaleontology 62, no. 1 (2016): 1–68. http://dx.doi.org/10.47894/mpal.62.1.01.

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Larger foraminifera of the late Cretaceous (late Campanian) to middle Eocene (Lutetian) are recognized in the upper Cretaceous to Paleogene sedimentary rocks in the Haymana and Black Sea regions, Turkey. 114 diagnostic larger and benthonic foraminiferal species belonging to 66 genera including one new genus Chaldagia are identified, and 89 diagnostic species are documented as local ranges. Biostratigraphically useful 11 larger foraminiferal assemblage zones are described, and are correlated with two larger foraminiferal assemblage zones, NE India and Philippines in the Tethys region. Chaldagia haymanensis, n. gen., n. sp. and Scandonea samnitica De Castro are systematically described. Associated 52 planktonic foraminiferal species belonging to 23 genera are identified, and 90 larger and benthonic foraminifera and 40 planktonic foraminifera are illustrated. Some element concentrations of the Cretaceous-Tertiary (K-T) boundary layers (28-37 cm thick with goethite layers) were found in the MedetlÃ section, GÃ¶rpazari, Black Sea region by the authorâ€™s research group. In there, Ir concentration was low and slightly elevated (0.24 ppb) in a sample of goethite layers, and foraminiferal taxa didnâ€™t yield. The K-T Ir layers are well correlated with those in the Meghalaya, NE India. Sr isotope values (87 Sr/86 Sr, 0.707885 â€“ 0.707819) in the K-T boundary layers in the Devrekani section, Kastamonu, Black Sea region agreed well with those in the K-T boundary regions of the world by the authorâ€™s research group.

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McLachlan, Sandy M. S., and Vera Pospelova. "Dinoflagellate cyst-based paleoenvironmental reconstructions and phytoplankton paleoecology across the Cretaceous–Paleogene (K/Pg) boundary interval, Vancouver Island, British Columbia, Canada." Cretaceous Research 126 (October 2021): 104878. http://dx.doi.org/10.1016/j.cretres.2021.104878.

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Anan, Haidar Salim. "PALEONTOLOGY, PALEOENVIRONMENT AND PALEOGEOGRAPHY OF THE EARLY PALEOGENE PAKISTANIAN BENTHIC FORAMINIFERAL SPECIES OF HAQUE - SUBORDER ROTALIINA." Earth Sciences Pakistan 5, no. 2 (July 16, 2021): 56–67. http://dx.doi.org/10.26480/esp.02.2021.56.67.

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Eighty-five Early Paleogene Pakistanian smaller Rotaliid benthic foraminiferal species belong to thirty-nine genera from the Ranikot, Nammal and Laki Formations of the Nammal Gorge, Salt and Sor Ranges of Pakistan have been studied. The modern taxonomic consideration and systematic description of the species is based on the diagnostic morphology, list of synonyms, short remarks about morphological features, and annotations about taxa with problematic generic status. Most of the recorded species are, so far, an endemic to Pakistan, except 19 species of them were recorded in other localities in the Southern Tethys (India, Qatar, United Arab Emirates, Saudi Arabia, Egypt, Nigeria) and also in Northern Tethys (France, Spain, Slovenia). The high abundance of pelagic Pakistanian foraminiferal assemblage indicate open connection to the Tethys, which represents middle-outer neritic environment (100-200 m depth) and shows an affinity with Midway-Type Fauna ‘MTF’.

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39

Salim Anan, Haidar. "PALEONTOLOGY, PALEOENVIRONMENT AND PALEOGEOGRAPHY OF THE EARLY PALEOGENE PAKISTANIAN BENTHIC FORAMINIFERAL SPECIES OF HAQUE – SUBORDER TEXTULARIINA (AGGLUTINATED FORAMINIFERA)." Earth Sciences Pakistan 6, no. 1 (2022): 01–06. http://dx.doi.org/10.26480/esp.01.2022.01.06.

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The present study is a part of the comprehensive works concerned with the complete record of the Paleogene small benthic foraminiferal content in the Ranikot and Laki Formations of the Nammal Gorge, Salt and Sor Ranges of Pakistan. The first part was concerned with the Miliolina and Lagenina foraminiferal assemblage of Haque from Pakistan, and followed by the second part which concerned with the Rotaliid assemblage of the same author of Pakistan. The third part is concerned with the Textulariid part and presented in this study. Twenty one Early Paleogene Pakistanian smaller Textulariid (Agglutinated) benthic foraminiferal species and subspecies from the Ranikot and Laki Formations of the Nammal Gorge, Salt and Sor Ranges of Pakistan have been studied and are systematically listed. This systematic description provides a list of modern synonyms, short remarks about morphological features, and some annotations about taxa with problematic generic status. These species are: Spiroplectinella ushbali, Gaudryina nitida, Siphogaudryina daviesi, S. elongata, S. nammalensis, Verneuilina laevigata, Tritaxia elongata, T. limbata, Dorothia nammalensis, Marssonella nammalensis, Bigenerina khirthari, B. metingensis, B. nodosa, Textularia crookshanki, T. haquei, T. punjabensis, Clavulinoides lakiensis, C. spatha, C. symmetrica, Valvulina n. nammalensis, V. nammalensis longa. Most of the recorded species are an endemic to Pakistan, except five species Siphogaudryina elongata, Tritaxia elongata, T. limbata, Textularia crookshanki and T. punjabensis are recorded in some Northern Tethys (France, Hungary) and Southern Tethys (India, Iran, UAE, Egypt, Algeria). The paleoenvironmental interpretations of the identified species in the study area of Pakistan were deposited in somewhat deep water and open-marine environments. The abundance of pelagic Pakistanian benthic foraminiferal assemblages indicate an open connection to the Tethys, which represents middle-outer neritic environment (100-200 m depth) and shows an affinity with the Atlantic-Tethyan Regions: “Midway Type Fauna “.

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Anan, Haidar Salim. "PALEONTOLOGY AND PALEOGEOGRAPHY OF THE TETHYAN EARLY PALEOGENE ROTALIID BENTHIC FORAMINIFERAL PAKISTANIAN GENUS ORNATANOMALINA AND OTHER RELATED GENERA." Earth Sciences Pakistan 5, no. 1 (March 18, 2021): 06–09. http://dx.doi.org/10.26480/esp.01.2021.06.09.

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Six Early Paleogene small Rotaliid benthic foraminiferal species of the genus Ornatanomalina Haque are common in Pakistan and some of them are recorded from some localities in the Southern Tethys (Iraq, Qatar, United Arab Emirates, Nigeria), as well as Northern Tethys (Italy, France): O. acuta, O. crookshanki, O. elegantula, O. geei, O. glaessneri, O. hafeezi. Another one of the illustrated species of Pakistan is believed to be new: O. pakistanica Anan, n. sp. Moreover, another one species of the genus was recorded earlier from the Early Eocene rocks of the United Arab Emirates (UAE):O. ennakhali. The taxonomic status of the genus Ornatanomalina Haque with the other related genera, as Thalmannita (Bermúdez) and Saudella Hasson are also discussed.

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Honarmand, Atusa, Mohammad Vahidinia, Mohammad Hossein Mahmudy Gharaie, and Meysam Shafiee Ardestani. "Upper Cretaceous planktonic foraminiferal biostratigraphy of the Zagros Basin (West Iran) with reference to sea-level changes." Micropaleontology 67, no. 1 (2021): 53–72. http://dx.doi.org/10.47894/mpal.67.1.05.

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In this study, an Upper Cretaceous sedimentary sequence in the Anaran Anticline (located in the central Zagros) is investigated to assess planktonic foraminiferal biozonations and implications for sea level changes. The thickness of this sequence is about 215 m, characterized by shales and limestones with thin marly limestone intercalations. In total, 51 species and 22 genera of planktonic foraminifera in 12 biozones spanning the middle Campanian to late Danian ages were delineated in the studied sequence. Additionally, planktonic foraminiferal morphological models, species abundance percentages, and the planktonic/benthonic foraminiferal ratio (P/B) ratios were assessed to reconstruct changes in sea level. The statistical studies on the different genera and species and the P/B ratio from the base to the top of the sequence indicate sea level transgressions during the middle Campanian and Maastrichtian in the Contusotruncana plummerae Interval Zone, Radotruncana calcarata Total Range Zone, Globotruncanella havanensis Partial Range Zone, Globotruncana aegyptiaca Interval Zone, Contusotruncana contusa Interval Zone, and part of the Abathomphalus mayaroensis Interval Zone.Moreover, species belonging to the deep-water morphotype (G. arca, G. hilli, G. linneiana, and G. ventricosa) are mostly present. Furthermore, two intervals of this sequence are associated with falling sea levels: 1) at the Campanian/Maastrichtian boundary in the middle of the Gansserina gansseri biozone; 2) from the late Maastrichtian close to the Cretaceous/Paleogene boundary with marly lithology.

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42

Gao, Yuan, Youfeng Gao, Daniel E. Ibarra, Xiaojing Du, Tian Dong, Zhifei Liu, and Chengshan Wang. "Clay mineralogical evidence for mid-latitude terrestrial climate change from the latest Cretaceous through the earliest Paleogene in the Songliao Basin, NE China." Cretaceous Research 124 (August 2021): 104827. http://dx.doi.org/10.1016/j.cretres.2021.104827.

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43

Waskowska, Anna. "Distribution of the agglutinated foraminifer Ammolagena clavata (Jones and Parker) in Western Tethyan Upper Cretaceous and Paleogene deep-water deposits (Outer Carpathians, Poland)." Micropaleontology 60, no. 1 (2014): 77–88. http://dx.doi.org/10.47894/mpal.60.1.08.

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Ammolagena clavata (Jones et Parker) – a cosmopolitan agglutinated foraminifera – is present as an accessory taxon in assemblages of the Outer Carpathians. This species has been found in deep water settings, exclusively in rich and diversified assemblages, among taxa representing various strategies of life from epifauna to deep infauna. Ammolagena clavata is one of the most common of attached forms in flysch foraminiferal assemblages and inhabits as a substrate other agglutinated foraminiferal tests. In the Outer Carpathian basins this species wasmore abundant in middle Eocene successions above the carbonate compensation depth (CCD), dominated by mudstones deposited under reduced clastic supply conditions. Ammolagena clavata can be regarded as an indicator of an environment with a low supply of clastic material.

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BouDagher-Fadel, Marcelle K., and G. David Price. "The phylogenetic and palaeogeographic evolution of the nummulitoid larger benthic foraminifera." Micropaleontology 60, no. 6 (2014): 483–508. http://dx.doi.org/10.47894/mpal.60.6.01.

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Nummulitoidea are larger benthic foraminifera, and were major reef-forming organisms from the Middle Paleogene to Early Neogene. Today, porous nummulitoid limestones, which occur globally from the Atlantic to the Indo-Pacific, form potentially valuable oil reservoirs. Until now the origin, evolution and palaeogeographic development of the nummulitoids have not been fully articulated, but new material allows here the first systematic, global biostratigraphic comparison and correlation of the nummulitoids to be made. It is suggested that the nummulitoids originated in the Americas during the Middle Paleocene (Selandian). These early nummulitoids are inferred to have migrated across theAtlantic in the Late Paleocene (Thanetian) following two paths: south towards SW Africa, and northeastward through the Tethyan corridor. The Tethyan forms evolved during the Eocene into many lineages,which in turn migrated, within a few million years of their first appearance, into the Indo-Pacific, where they became isolated and diversified further. Meanwhile the SW African forms remained small and similar to the original American stock until the Early Miocene (Burdigalian), when assemblages were augmented by forms that migrated from Tethys, an event tablished by the discovery of new Mediterranean-derived species of Planostegina in SW Africa: africana, mcmillania, southernia, langhiana. Climatic and tectonic processes contributed to the Middle Oligocene disappearance of Nummulites and the Early Miocene global extinction of Spiroclypeus and of Cycloclypeus in the Mediterranean. Morphologically small nummulitoids persisted however, and are still present in all provinces to this day.

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Schlagintweit, Felix, and Koorosh Rashidi. "Serrakielina chahtorshiana n. gen. et n. sp., and other (larger) benthic Foraminifera from Danian-Selandian carbonates of Mount Chah Torsh (Yazd Block, Central Iran)." Micropaleontology 65, no. 4 (2019): 305–38. http://dx.doi.org/10.47894/mpal.65.4.04.

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Mount Chah Torsh in the Yazd area of Central Iran exposes the Cretaceous-Paleogene boundary within a carbonatic siliciclastic shallow-water succession. From the territory of Iran the K/Pg boundary was so far only recorded from deeper-water successions of the Kopet Dagh Basin in the northeast and the Zagros Zone (Gurpi Formation) in the southwest. From the Paleocene (Danianâ€“Selandian, Shallow Benthic Zones 1â€“2) carbonates of Mount Chah Torsh the new porcelaneous Larger Benthic Foraminifera Serrakielina chahtorshiana n. gen. et n. sp. is described. In the uniserial adult part the chambers are subdivided by radial partitions. Together with the single, stellate foramina Serrakielina n. gen. compares closely to the soritacean Praerhapydionina Henson. It differs in its juvenile stage (trochospiral in the former vs. planispiral in the latter). From the same section, Haymanella ex. gr. paleocenica Sirel, Kolchidina paleocenica (Cushman), Sistanites iranicus Rahaghi, Orduella sphaerica Sirel, and other taxa (rotaliids, miliolids) are reported. Anew larger agglutinated taxon is described as Socotraella? yazdiana n. sp. Socotraella ashawqi the type-species of the genus was described from the Lower Oligocene of Yemen (Socotra Island) and Oman. The samples from the Mount Chah Torsh section also display a comparably rich association of Dasycladales and other algae. The locality can be considered a standard section for Danianâ€“Selandian shallow-water carbonates in Iran. Exposing also the K/Pg boundary in a conformable transition, this locality offers several topics for future research.

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Anan, Haidar Salim. "PALEONTOLOGY AND PALEOENVIRONMENT OF THE EARLY PALEOGENE PAKISTANIAN BENTHIC FORAMINIFERAL SPECIES OF HAQUE – SUBORDERS MILIOLINA AND LAGENINA." Earth Sciences Pakistan 5, no. 1 (March 18, 2021): 42–47. http://dx.doi.org/10.26480/esp.01.2021.42.47.

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Thirteen Early Paleogene Pakistanian smaller Miliolid and eight Lagenid benthic foraminiferal species and subspecies from the Ranikot and Laki Formations of the Nammal Gorge, Salt and Sor Ranges, Punjab of Northern Pakistan have been studied. The modern taxonomic consideration and systematic description of the species is based on the diagnostic morphology, and provides a list of synonyms, short remarks about morphological features of the taxa and some annotations about taxa with problematic generic status. Two species of them belong to the genus Spiroloculina(haquei, pakistanica), four of Quinqueloculina (inflata, pseudosimplex, pseudovata, ranikotensis), two of Triloculina (psudoenoplostoma, sarahae), two of Agglutinella (reinemundi, sori) and three of Dentostomina (ammobicarinata, ammoirregularis, gapperi). One species of the Lagenid belongs to the genus Frondicularia (nammalensis), one of Lenticulina (reussi), one subspecies of Palmula (woodi nammalensis), one of Astacolus (vomeriformis), one of Vaginulinopsis (nammalensis), one of Lagena (reticulatostriata), one of Galawayella (nammalensis) and one of Parafissurina (pakistanica). The two species of the Miliolids: Spiroloculina (haquei, pakistanica) and one Lagenid Parafissurina (pakistanica) are believed to be new. Some of these species are recorded outside of Pakistan in Northern Tethys (France): Astacolus vomeriformis and Vaginulinopsis nammalensis. The high abundance of pelagic Pakistanian foraminiferal assemblage indicate open connection to the Tethys, which represents middle-outer neritic environment (100-200 m depth) and shows an affinity with ‘Midway-Type Fauna’.

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Anan, Haidar Salim. "Paleontology, stratigraphy, paleoenvironment and paleogeography of the seventy Tethyan Maastrichtian-Paleogene foraminiferal species of Anan, a review." Journal of Microbiology & Experimentation 9, no. 3 (June 25, 2021): 81–100. http://dx.doi.org/10.15406/jmen.2021.09.00329.

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48

Tkacheva, G. S. "Morphology, Classification and Lineage of the Genera Garumnaster Lambert, 1907 and Basseaster Lambert, 1936 (Echinoidea: Holasteroida, Urechinina) from the Cretaceous–Paleogene Deposits of the Mangyshlak Peninsula." Paleontological Journal 55, no. 10 (December 2021): 1084–99. http://dx.doi.org/10.1134/s0031030121100099.

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49

Bateman, Richard M. "Quaternary history of the Ayot Paleogene Outlier, Southeast England: A field and laboratory case-study in local geology with regional implications." Proceedings of the Geologists' Association 132, no. 4 (August 2021): 438–55. http://dx.doi.org/10.1016/j.pgeola.2021.05.001.

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Jia, Lin-Bo, Jian Huang, Tao Su, Robert A. Spicer, Shi-Tao Zhang, Shu-Feng Li, Bo Pan, Gi-Soo Nam, Yong-Jiang Huang, and Zhe-Kun Zhou. "Fossil infructescence from southwestern China reveals Paleogene establishment of Cladrastis in Asia." Review of Palaeobotany and Palynology 292 (September 2021): 104456. http://dx.doi.org/10.1016/j.revpalbo.2021.104456.

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