Theropod teeth (Dinosauria: Saurischia) from the Bajo Barreal Formation, Upper Cretaceous, Chubut Province, Argentina

被引：26
作者：
Casal, Gabriel [2 ]
Candeiro, Carlos Roberto A. [1 ]
Martinez, Ruben [2 ]
Ivany, Edmundo [2 ]
Ibiricu, Lucio [3 ]
机构：
[1] Univ Fed Uberlandia, Fac Ciencias Integradas Pontal, Curso Geog, Lab Geol Nucl Anal Ambientais Geociencias, BR-38300132 Bairro Progresso, Ituiutaba, Brazil
[2] Univ Nacl Patagonia San Juan Bosco, Fac Ciencias Nat, Lab Paleovertebrados, RA-9009 Comodoro Rivadavia, Chubut, Argentina
[3] Drexel Univ, Philadelphia, PA 19104 USA
来源：
GEOBIOS | 2009年 / 42卷 / 05期
关键词：
Dinosaurs; Theropoda; Teeth; Upper Cretaceous; Patagonia; SAN-JORGE BASIN; PATAGONIA;
D O I：
10.1016/j.geobios.2009.03.002
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
Theropod teeth from the Bajo Barreal Formation (Upper Cretaceous: Cenomanian-Turonian) at the "estancia Ocho Hermanos", Chubut Province are described. Most of them show features of Abelisauroidea, a clade already represented in the Bajo Barreal Formation by Xenotarsosaurus bonapartei and other isolated remains including a left maxilla. Dromaeosauridae and Carcharodontosauridae represent the first record of these taxa for the Bajo Barreal Formation. Besides this, at least three theropod clades (Abelisauroidea, Carcharodontosauridae, and Dromaeosauridae) coexisted in central Patagonia during the Cenomanian-Turonian along with other theropods as Aniksosaurus darwini and Megaraptor sp. (C) 2009 Elsevier Masson SAS. All rights reserved.
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收藏
页码：553 / 560
页数：8
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