The Hybodontiformes (Chondrichthyes: Elasmobranchii) from the Missao Velha Formation (?Lower Cretaceous) of the Araripe Basin, North-East Brazil

被引：13
|
作者：
Cupello, Camila D. [1 ]
Bermudez-Rochas, David D. [2 ]
Martill, David M. [3 ]
Brito, Paulo M. [1 ]
机构：
[1] Univ Estado Rio de Janeiro, Dept Zool, BR-20559900 Rio De Janeiro, Brazil
[2] Univ Cantabria, Dept Educ, Area Didact Ciencias Expt, E-39005 Santander, Spain
[3] Univ Portsmouth, Sch Earth & Environm Sci, Portsmouth PO1 3QL, Hants, England
来源：
COMPTES RENDUS PALEVOL | 2012年 / 11卷 / 01期
关键词：
Hybodontiformes; Hybodontidae; Lonchidiidae; Missao Velha Formation; Brazil; TACUAREMBO FORMATION; MORPHOLOGY; GONDWANA; SHARKS; FISHES;
D O I：
10.1016/j.crpv.2011.09.005
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
The ?Early Cretaceous (pre-Aptian) Missao Velha Formation of the Araripe Basin of North-East Brazil yields remains referred to two hybodontiform shark taxa: the hybodontid Planohybodus and the lonchidiid Parvodus. Paleoenvironmental analysis of this formation suggests freshwater or perhaps brackish deposition. The specimens described here were collected from a new locality and are found in association with actinopterygian and sarcopterygian fishes and rarer turtles, crocodylomorphs and theropod dinosaurs. The chondrichthyan assemblage is represented by isolated teeth, cephalic spines, and dorsal fin spines. This is the first record of Planohybodus in the Araripe Basin and the first record of Parvodus in the Cretaceous of Gondwana. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：41 / 47
页数：7
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