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Page 19 of 19, showing 6 record(s) out of 366 total

New records of terrestrial Mammals from the upper Eocene Qasr el Sagha Formation, Fayum Depression, Egypt
Patricia A. Holroyd Logo, Elwyn L. Simons, Thomas M. Bown , Paul D. Polly and Mary J. Kraus Logo
Published online: 16/12/1996

Keywords: Egypt; Eocene; Fossil mammals; Qasr el Sagha Formation

  Abstract

    New records of terrestrial mammals from the Qasr el Sagha Formation, Fayum Depression, Egypt are reported, and the stratigraphic occurrences of these fossils noted. These include additional specimens of Moeritheríum, Barytherium, and anthracotheres, as well as the oldest record of a hyracoid in the Fayum.These Eocene mammals occur almost exclusively in the alluvial deposits of the Dir Abu Lifa Member of the Qasr el Sagha Formation and show close affinities to the faunas from the lower sequence of the Jebel Qatrani Formation. There is no evidence of a more marked faunal discontinuity between the Qasr el Sagha and Jebel Qatrani Formations than there is across any of the three major breaks in sedimentation that exist within the Jebel Qatrani Formation. The faunal similarities between fossils of the lower sequence of the Jebel Qatrani Formation and of the upper part of the Qasr el Sagha Formation is consistent with recent paleomagnetic dating that suggests that these rocks differ in age by only one to two million years. 


  PV article infos

Published in Vol. 25, Fasc. 2-4 (1996)

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 La poche à phosphate de Ste-Neboule (Lot) et sa faune de vertébres du Ludien Supérieur. 1 La poche et son remplissage
Bernard Gèze
Published online: 15/09/1978

Keywords: Eocene; Quercy Phosphorites

https://doi.org/10.18563/pv.8.2-4.171-173

  Abstract

    La poche de Ste-Néboule, commune de Béduer (Lot), 15 km environ à l'WSW de Figeac, fait partie du groupe le plus septentrional des gouffres creusés par les ruissellements du Paléogène dans les calcaires jurassiques de la bordure sud-ouest du Massif Central et qui furent comblés à la même époque par des argiles sidérolithiques accompagnées de phosphate de chaux concrétionné ainsi que des restes de la célèbre faune dite «des phosphorites du Quercy» . 


  PV article infos

Published in Vol. 08, Fasc. 2-4 (1978)

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Fossil mammals and the age of the changxindian formation, Northeastern China
Spencer G. Lucas
Published online: 16/12/1996

Keywords: Changxindian Formation; China; Eocene; Fossil mammals

  Abstract

    Re-evaluation of the small collection of mammal fossils from the Changxindian Formation near Beijing, China indicates the following taxa are present: Eutheria, Hypsimilus beifingensis, cf. Miacis sp., Anthracotheriidae and Forstercooperia grandis. The presence of Forstercooperia grandis indicates an Irdinmanhan age and does not support previous assignment of a Sharamurunian age to the Changxindian Formation. 


  PV article infos

Published in Vol. 25, Fasc. 2-4 (1996)

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Owls, caves and fossils. Predation, preservation and accumulation of small mammal bones in caves, with an analysis of the Pleistocene cave faunas from Westbury-Sub-Mendip, Somerset, UK, par Peter Andrews, 1990. The University of Chicago Press, 232 p.
Christiane Denys Logo
Published online: 17/12/1992

Keywords: caves; owls; preservation; taphonomy

https://doi.org/10.18563/pv.22.1.49-50

  Abstract

    La taphonomie (science de l'enfouissement et de la fossilisation) des micromammifères a trop souvent été négligée par rapport à celle des grands mammifères. Or, pour expliquer les concentrations parfois très importantes de microfossiles dans les grottes et les sites préhistoriques il faut connaître les mécanismes qui concourrent actuellement à favoriser les accumulations de ces derniers. C'est le but de l'ouvrage de Peter Andrews qui se décompose en deux parties. 


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Published in Vol. 22, Fasc. 1 (1992)

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Repartition et dynamisme des faunes de Lacertilia et d'Amphisbaenia dans l'Eocène Europe
Marc Augé
Published online: 11/02/1993

Keywords: Amphisbaenia; climate; Endemism; Eocene; Europe; Lacertilia; Metabolism

https://doi.org/10.18563/pv.22.2-3.51-71

  Abstract

    The composition of assemblages of lizards and Amphisbaenian from the European Eocene are described. At least ten lizard families are identified from the lower European Eocene levels. Eight are still recorded in the last level (Escamps) of the late Eocene. Agamid lizards (genus Tinosaurus) died out by the end of the lower Eocene and Varanid lizards (genus Saniwa) disappeared by the beginning of the late Eocene. Amphisbaenians are recorded throughout the Eocene in Europe. The lacertilian fossil record of Europe and North America show a high degree of faunal resemblance in the early Eocene, followed by a decrease during the later part of the epoch. The lacertilian and amphisbaenian faunas from the European Eocene are not subject to great variations during the period; this is in contrast with the mammal record at the same time. It is argued that the low metabolic rates and the ectothermy of lizards could explain those differences, along with the increasing insularity of the West European area during the late Eocene time.

      


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Published in Vol. 22, Fasc. 2-3 (1993)

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Miocene Bovidae (Mammalia) of the Siwaliks, Part 1: Hypsodontinae and Bovinae.
Alan Gentry, Nikos Solounias Logo, John C. Barry Logo and S. M. Raza Logo
Published online: 01/01/1970

Keywords: Bovidae; horncores; Miocene; Siwaliks

https://doi.org/10.18563/pv.49.1.e1

  Abstract

    The fluvial sediments of the Siwaliks in northern Pakistan preserve an exceptional geologic and paleontological record encompassing parts of the Oligocene and all of the Miocene and Pliocene. The sediments, which can be thousands of meters thick, have abundant vertebrate and invertebrate fossils from hundreds of different levels. Fossils were first discovered in the Siwaliks in 1832 and there are important collections of them in the Museum of the Geological Survey of India as well as in various European, British, and American museums. Renewed collecting has now added over 10,000 bovid fossils to a new collection held by the Geological Survey of Pakistan. The fossils include rare skulls and many isolated horn cores, as well as teeth and postcranials. Here we discuss material belonging to the hypsodontinae, boselaphini, and bovini. We recognize four hypsodontine and twenty-two bovine species, plus one species of uncertain subfamilial placement. Nineteen of the twenty-seven have previously been named, while another five have cranial material suitable for defining a new species. Two species, referred to as  ?Hypsodontinae sp. and Bovidae sp. 1, are distinctive but left unnamed. We are also uncertain about how distinctive what we refer to as Selenoportax aff. vexillarius is from Selenoportax vexillarius. Boselaphinines predominate in the fossil collections, both in terms of number of species and number of specimens. Most of the boselaphine genera are endemic to the Siwaliks, as are the hypsodontine Palaeohypsodontus and the possible bovini Pachyportax. The predominance of boselaphines together with the number of endemic taxa gives the Siwalik bovid fauna a distinctive aspect and collectively comprise the best-known Miocene record of the subfamily.
      


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Page 19 of 19, showing 6 record(s) out of 366 total