Pterosaurs from Coahuila
CYLINDRACANTHUS FROM INDIA
Book of Abstracts of the XXII Annual Meeting of the European Association of Vertebrate Palaeontologists, 30 June–5 July 2025, Kraków, Poland
Oldest evening bat from the Early Eocene of France
The digital endocast of Necrolemur antiquus
stapes trapped in artiodactyls bony labyrinth
Eocene (57) , Quercy Phosphorites (38) , Systematics (32) , Rodents (29) , Mammalia (27) , Rodentia (25) , Miocene (24)
Page 9 of 19, showing 20 record(s) out of 365 total
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Functional aspects of the evolution of rodent molarsPercy M. ButlerPublished online: 10/1/80Keywords: Chewing; Muridae; Rodents; Wear facets Abstract The wear facets of primitive rodents can be homologized with those of primitive primates and ungulates. As in primates, the jaw movement was ectental, with an increased anterior component in the lingual phase (phase ll). The buccal phase (phase I) in rodents approaches the horizontal and it tends to be reduced in importance in comparison with the lingual phase. ln more advanced rodents the efficiency of grinding is increased by the development of additional cutting edges of enamel (e.g. enlargement of hypocone, development of mesoloph and lingual sinus). The buccal phase movement becomes lined up with the lingual phase movement to form a single oblique chewing stroke,resulting in planation of the crown. As the stroke becomes more longitudinal (propalinal) the enamel edges become more transverse. In Muridae propalinal chewing evolved before the loss of cusps, facets were reorientated and additional cusps developed. PV article infos Published in Vol. 9, Ext (1980) |
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Prospection paléontologique de la région de Torralba de Ribota (Burdigalien du bassin de Calatayud, prov. de Zaragoza, Espagne)Edouard Boné, Maria T. Alberdi
Published online: 10/1/80 |
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Une faune du niveau d'Egerkinger (MP 14; Bartonien inférieur) dans les phosphorites du Quercy (Sud de la France)Jean Sudre, Bernard Sigé, Jean-Albert Remy, Bernard Marandat, Jean-Louis Hartenberger, Marc Godinot
Published online: 12/18/90 |
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The Quaternary avifauna of Crete, Greece.Peter D. WeesiePublished online: 9/1/88Keywords: Avifauna; Crete; Quaternary; Systematics Abstract Pleistocene bird fossils have been studied from nine localities on Crete. Part of this material was described earlier by the author (Weesie, 1982) and will not be treated here in extenso, the results will be incorporated. More than one third of the over 10,000 fossil bird bones available could be identified ; they were found to represent at least 65 bird species. The following species of the Pleistocene Cretan avifauna are new to the fauna of Crete : Branta ruficollis, Haliaeetus albicilla, Gyps melitensis, Aquila chrysaetos simurgh n. ssp., Ketupa zeylomensis, Aegolius funereus, Dendrocopos leucotos, Zoothera dauma, Turdus iliacus and Pyrrhula pyrrhula. The Pleistocene Cretan avifauna differs less from comparable mainland avifaunas than (fossil) avifaunas from oceanic islands do. Still, the Pleistocene Cretan avifauna has two qualities that are characteristic of island avifaunas : the almost complete absence of a group of birds (the Galliformes) and the presence of two endemic (sub)species : the giant eagle Aquila chrysaetos simurgh n. ssp. and the long-legged owl Athene cretensis (Weesie, 1982). The new subspecies is described in the present study. PV article infos Published in Vol. 18, Fasc. 1 (1988) |
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Octodontid-like Echimyidae (Rodentia) : an upper Miocene episode in the radiation of the familyDiego H. Verzi
Published online: 5/20/94 |
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Les rongeurs de l'Eocène d'Afrique Nord-Occidentale [Glib Zegdou ( Algérie) et Chambi (Tunisie)] et l'origine des anomaluridae.Monique Vianey-Liaud
Published online: 5/20/94 |
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Book review : "Encyclopedia of Paleoherpetology"Jean-Yves CrochetPublished online: 6/20/87Keywords: Book review; Paleoherpetology Abstract Encyclopedia of Paleoherpetology. In 19 parts ; Initiated by Prof. Dr. Oskar KUHN ; Edited by Dr. Peter WELLNHOFER, München. - Part. 17 A : Pelycosauria, by Dr. Robert R. REISZ, Erindael Campus, University of Toronto. 1986. VIII, 102 pp., 43 fig., 20,5 x 25,5 cm, soft cover : DM 140, - (Pref. - Price for subscribers to the whole series : DM 126, -). ISBN 3-437-30486-0. PV article infos Published in Vol. 17, Fasc. 2 (1987) |
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Description des rongeurs Pliocènes de la faune du Mont-Hélène (Pyrénées-Orientales, France), nouveau jalon entre les faunes de Perpignan (Serrat-d'en-Vacquer) et de Sète.Jean-Pierre Aguilar, Marc Calvet
Published online: 10/31/86 |
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Contributions à l'étude du gisement Miocène supérieur de Montredon (Hérault). Les grands mammifères. 6 - Les périssodactyles RhinocerotidaeClaude GuérinPublished online: 11/15/88Keywords: Aceratherium; anatomy; Biostratigraphy; Dicerorhinus; Miocene; Montredon; Paleoecology; Upper Vallesian Abstract The Montredon site has yielded about hundred rhinoceros remains: PV article infos Published in Vol. 18, Ext (1988) |
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La morphologie dentaire des Thalattosuchia (Crocodylia, Mesosuchia).Patrick Vignaud
Published online: 12/15/97 Keywords: Dental morphology; Dental types; feeding habits.; Jurassic; Metriorhynchidae; Systematics; Teleosauridae; Thalattosuchia Abstract The tooth morphology of the Thalattosuchia (marine crocodilians from the Jurassic and the Early Cretaceous) is analysed. The Callovian from Poitou and the Kimmeridgian from Quercy have yielded many remains of Metriorhynchus, Steneosaurus and Machimosaurus. These remains allow us to study the variations of tooth morphology during ontogenic growth, tooth replacement and the location of the teeth. We have defined different tooth types for these genera. In Metriorhynchus, the two tooth types defined do not coincide with the two groups recognized in the Callovian (broad-skulled and narrow-skulled metriorhynchids) but reflect the prey preferences of these forms. In Steneosaurus and Machimosaurus the five tooth types deñned are in agreement with the main taxa known from the Bathonian to the Early Cretaceous. This study allows to precise the function and the prey preference of the Thalattosuchia during the Jurassic and the Early Cretaceous. PV article infos Published in Vol. 26, Fasc. 1-4 (1997) |
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Eurodexeinae, eine neue unterfamilie der Artiodactyla (Mammalia) aus dem unter- und mitteleozän europasJorg Erfurt and Jean SudrePublished online: 12/16/96Keywords: Artiodactyls; Eocene; evolution; Germany; Lutetian; new genus; New subfamily Abstract Dichobunoid artiodactyls are described in this paper from the middle Eocene Geiseltal lignite deposits near Halle (Sachsen-Anhalt, Germany). The genera Eurodexis and Parahexacodus are established based on odontologica1 studies. The type-species are E. ceciliensis (FRANZEN & KRUMBIEGEL, 1981) and P. germanicus n. sp. from the "obere Mittelkohle" (see text), MP 13. The genera are referred to the new subfamily Eurodexeinae (Dichobunidae, Artiodactyla, Mammalia), which also contains the monospecific genus Eygalayodon SUDRE & MARANDAT, 1993. These new genera show many features similar to North American homacodontids and antiacodontids. They exemplify a high degree of diversity in European dichobunids. Moreover, the family Dichobunidae includes the Dichobuninae and the Hyperdichobuninae. The connection of the posthypocristid with the postentocristid, the shift of a medial to a lingual position of the hypoconulid on the lower molars and the development of a large, caniniform P1 are regarded as the principal tendencies of the eurodexeines. The entoconid is larger and more mesially situated compared to that of Diacodexis. The hypoconulid has a lingual position on a broad postcingulid. The elongation of the premolars and the presence of diastemata are considered associated with extension of the muzzle. This and the acute tubercles of the molars could indicate a limited degree of insectivory. Protodichobune cf. oweni and Diacodexis cf. varleli, first reported here from the "untere Unterkohle" (MP 11) of the Geiseltal, demonstrate the existence of forms in the basal part of the middle Eocene, that are direct descendants of lower Eocene ones. Eurodexis russelli n. sp. from MP 10 of Premontre is the most primitive representative of Eurodexis. A further part of this lineage could be Messelobunodon sp. from MP 11 of Messel (Germany). Another form from Premontre, referred to Eurodexeinae indet., represents the origin of the lineage to Parahexacodus germanicus n. sp. from the Geiseltal (MP 13). The identification of several lineages in MP 10 is evidence of an adaptive radiation during this time. Unfortunately the history of the earlier species of Diacodexis is not known well enough to exclude earlier diversifications. Our study shows the independent development of artiodactyls at the end of the lower Eocene in Europe, North America (and maybe in Asia) with much convergence. The question of the geographic origin of the genus Diacodexis is still open. PV article infos Published in Vol. 25, Fasc. 2-4 (1996) |
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Strange Eocene rodents from SpainPablo Pelaez-Campomanes
Published online: 12/16/96 |
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Revision des faunes de vertébrés du site de Provenchères-sur-Meuse (Trias terminal, Nord-Est de la France)Gilles Cuny
Published online: 6/14/95 Keywords: amphibians; Fishes; Reptiles; Rhetian; Triassic Abstract Revision of ancient collections and study of new material from Provenchères-sur-Meuse (Rhaetian) lead to signíficant changes in the faunal list of this site. This bring to us important information about the effect of the rhaetian transgression on the evolution of the faunas at this period of time. However, study of PV article infos Published in Vol. 24, Fasc. 1-2 (1995) |
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New late Paleocene rodents (Mammalia) from Big Multi Quarry, Washakie Basin,Wyoming.Mary R. Dawson and Christopher K. Beard
Published online: 12/16/96 Keywords: Clarkforkian; North America; Paleocene; Rodentia Abstract The earliest North American rodents occur in basal Clarkforkian beds of the Fort Union Formation at Big Multi Quarry near Bitter Creek, northern Washakie Basin, Sweetwater County, Wyoming, and in closely correlative Fort Union beds formerly accessible in the Eagle Coal Mine near Bear Creek, northern Clark's Fork Basin, Carbon County, Montana. Two new species of early Clarkforkian rodents, Paramys adamus and Alagomys russelli, are described from Big Multi Quarry. Paramys adamus is represented by virtually complete upper and lower dentitions, which demonstrate that this species is one of the most primitive North American paramyids yet discovered. These specimens form the basis for a reevaluation of the content and stratigraphic range of P. atavus, which is known with certainty only from Bear Creek. Alagomys russelli is the first North American record for the enigmatic rodent family Alagomyidae, otherwise known from ?late Paleocene-early Eocene localities in Mongolia and China. Phylogenetic analysis of dental and gnathic traits suggests that Alagomyidae form the sister group of all other undoubted rodents. At least two rodent clades, alagomyids and basal paramyids, seem to have invaded North America from Asia at the beginning of Clarkforkian time, but only the paramyids persisted to undergo a significant evolutionary radiation in North America. PV article infos Published in Vol. 25, Fasc. 2-4 (1996) |
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First record of the genus Megaderma Geoffroy (Microchiroptera: Megadermatidae) from Australia.Suzanne J. Hand
Published online: 6/14/95 Keywords: Australia; Chiroptera; Megaderma; Megadermatidae; Pliocene; Rackham's Roost Site; Riversleigh Abstract A new Tertiary megadermatid is described from Rackham's Roost Site, a Pliocene limestone cave deposit on Riversleigh Station, northwestern Queensland, Australia. It appears to represent the first Australian record of Megaderma GEOFFROY, 1810, a genus otherwise known from Tertiary African and European taxa and the living Asian species M. spasma (LINNAEUS, 1758) and M. (Lyroderma) lyra PETERS, 1872. Megademza richardsi n. sp. is one of the smallest megademiatids known. It exhibits a mixture of plesiomorphic and autapomorphic features, the latter appearing to exclude it from being ancestral to any living megadermatid. The new species is one of eight megadermatids identified from the Australian fossil record, most of which are referable to Macroderma MILLER, 1906. PV article infos Published in Vol. 24, Fasc. 1-2 (1995) |
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Handbuch der Paläeoherpetologie Teil 11: SerpentesJacques MichauxPublished online: 11/15/84Keywords: Book review Abstract Le volume 11 du «Handbuch der Paläeoherpetologie», consacré aux «Serpellles» et redigé par Jean-Claude Rage, apporte une remarquable information sur ce groupe particulier de reptiles dont on ne pouvait guere se faire une idée très précise à partir, par exemple, des seuls chapitres des traités classiques de Paléontologie et de Zoologie. PV article infos Published in Vol. 14, Fasc. 3 (1984) |
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Recherches de mammifères paléogènes dans les départements de l'Aisne et de la Marne pendant la deuxième moitié du vingtième sièclePierre LouisPublished online: 12/16/96Keywords: Biochronology; Eastern Paris Basin; Fossil localities; Mammals; paleoenvironments; Paléogène; Paleogeography Abstract A brief historical account of fossil vertebrate discoveries in the Eastern part of the Paris Basin between the beginning of the nineteenth century and 1950 is given. Other localities discovered since then are presented. A reconstruction of past landscapes is briefly elaborated. A biozonation based on mammals is proposed, from the Late Thanetian to the Middle Bartonian. Paleogeographical considerations are added. Suggestions regarding the search for new marnmal localities are made. PV article infos Published in Vol. 25, Fasc. 2-4 (1996) |
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Nouveaux Mammifères Eocènes du Sahara OccidentalJean SudrePublished online: 11/1/79Keywords: Eocene; Mammals; Occidental Sahara Abstract The fossil mammals collected from the Eocene of Hammada du Dra (northwest Sahara. Algeria) and two fragmentary teeth from the Lutetian of M'Bodione Dadere (Senegal) are described. PV article infos Published in Vol. 09, Fasc. 3 (1979) |
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Les Périssodactyles (Mammalia) du gisement Bartonien supérieur de Robiac (Éocène moyen du Gard, Sud de la France)Jean-Albert RemyPublished online: 5/4/15Keywords: Chasmotherium; new species; Palaeotheriidae; paleoenvironments https://doi.org/10.18563/pv.39.1.e3 Abstract We present here a new updated counting of the perissodactyls of Robiac, the type locality of the MP 16 level of the biochronological scale of paleogene mammals and that of the Robiacian stage of Eocene Land Mammals Ages in Western Europe. PV article infos Published in Vol.39-1 (2015) |
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Contribution à la classification des pistes de vertébrés du Trias: Les types du Stormberg d'Afrique du Sud (1).Paul EllenbergerPublished online: 10/16/72Keywords: Footprints; South Africa; Stormberg; Trias Abstract No abstract available PV article infos Published in Vol. 5, Ext (1972) |
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