A new thalattosuchian crocodyliform from the Tithonian (Upper Jurassic) of northeastern Mexico

被引：32

作者：

Buchy, Marie-Celine ^{[3
]}

Vignaud, Patrick

Frey, Eberhard

Stinnesbeck, Wolfgang

Gonzalez Gonzalez, Arturo H.

机构：

[1] Univ Karlsruhe, Inst Geol, D-76128 Karlsruhe, Germany

[2] Univ Poitiers, Lab Geobiol Biochronol & Paleontol Humaine, UMR 6046, CNRS,UFR SFA, F-86022 Poitiers, France

[3] Museo Desierto, Saltillo, Coahuila, Mexico

[4] Staatliches Museum Naturkunde, Geowissenschaftliche Abt, D-76133 Karlsruhe, Germany

来源：

COMPTES RENDUS PALEVOL | 2006年 / 5卷 / 06期

关键词：

Thalattosuchia; Geosaurus saltillense sp nov; Mexico; Tithonian; palaeobiogeography;

D O I：

10.1016/j.crpv.2006.03.003

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Recent fieldwork in the Early Tithonian of northeastern Mexico has yielded the partial cranium and associated fragmentary postcranial elements of a thalattosuchian. The specimen is described and referred to a new species of the genus Geosaurus characterised by elongated, narrow, oval supratemporal fenestrae, and a prefrontal that excludes the frontal from the centre of the dorsal margin of the orbits; the cranium is gracile and was probably more longirostrine than occurs in other members of this genus. The new taxon represents the second occurrence of the genus Geosaurus in the Mexican Gulf and is in agreement with the partial isolation of the area during the Late Jurassic, which was previously suggested by the microfossil and invertebrate assemblages.

引用

页码：785 / 794

页数：10

共 27 条

[1] Paleoceanographic changes at the Jurassic-Cretaceous boundary in the Western Tethys, northeastern Mexico [J].