A new lamniform shark Protolamna ricaurtei sp. nov. from the Lower Cretaceous of Colombia

被引：15

作者：

Carrillo-Briceno, Jorge D. ^{[1
]}

Parra, Juan D. ^{[2
]}

Luque, Javier ^{[3
,4
]}

机构：

[1] Univ Zurich, Paleontol Inst & Museum, Karl Schmid Str 4, CH-8006 Zurich, Switzerland

[2] Ctr Invest Palaeontol, Villa De Leyva, Colombia

[3] Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada

[4] Yale Univ, Dept Geol & Geophys, POB 6666, New Haven, CT 06520 USA

来源：

CRETACEOUS RESEARCH | 2019年 / 95卷

关键词：

Mesozoic; Barremian; Aptian; Elasmobranchii; South America; Andes; ELASMOBRANCHII PTYCHODONTIDAE; DENTAL MORPHOLOGY; CHONDRICHTHYES; ACTINOPTERYGII; BIOLOGY; GEN;

D O I：

10.1016/j.cretres.2018.12.007

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The Lower Cretaceous record of lamniforms from South America is scarce and poorly known, containing only two reports of isolated teeth from the upper Hauterivian of Argentina and the Albian of Peru. Here, we describe a partial articulated tooth set referable to dagger Protolamna ricaurtei sp. nov. from the upper Barremian-lower Aptian deposits of the Paja Formation (Andes of Colombia). The new species corresponds to one of the oldest fossil lamniforms to date reported from South America. This articulated tooth set is the only known for the family dagger Pseudoscapanorhynchidae, and possibly the oldest in its type for a lamniform from the Lower Cretaceous. Our findings offer new insights in to the lamniform paleodiversity of the northwestern margin of Gondwana during the Early Cretaceous. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：336 / 340

页数：5

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