Did oviraptorosaurs (Dinosauria; Theropoda) inhabit Argentina?

被引:25
作者
Agnolin, Federico L.
Martinelli, Agustin G.
机构
[1] Museo Argentino Ciencias Nat Bernardino Rivadavia, Lab Anat Comparada & Evoluc Vertebrados, RA-1405 Buenos Aires, DF, Argentina
[2] Museo Argentino Ciencias Nat Bernardino Rivadavia, Secc Paleontol Vertebrados, RA-1405 Buenos Aires, DF, Argentina
关键词
theropod; Abelisauroid; Noasaurid; Argentina;
D O I
10.1016/j.cretres.2006.10.006
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
In this contribution a putative oviraptorosaurian cervical vertebra discovered in the Campanian-Maastrichtian El Brete Formation from Salta Province, NW Argentina is analysed. Based on the resemblances of this vertebra with those of the basal neoceratosaurian Elaphrosaurus and with the noasaurid Noasaurus, the Salta specimen is interpreted to belong to the third or fourth cervical vertebra of a Noasauridae (eventually Noasaurus). Furthermore, it is Suggested that the Supposed anterior cervical vertebrae of Masiakasaurus, Laevisuchus and Noasaurus possibly correspond to a more posterior position than previously considered. Contrary to abelisaurids, the morphology of the anterior cervical vertebrae of noasaurids indicates that they probably were long neck theropods resembling ornithomimid coelurosaurs. Therefore, the occurrence of oviraptorosaurs in Argentina is rejected. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:785 / 790
页数:6
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