期刊
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
卷 27, 期 1, 页码 36-41出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsames.2008.11.005
关键词
Crocodyliformes; Sphagesauridae; Bauru Basin; Late Cretaceous; Brazil
资金
- Instituto Virtual de Paleontologia/Fundacao de Amparo A Pesquisa do Estado do Rio de Janeiro [E-26/152.541/2006]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [305780/2006-9]
The Sphagesauridae is a family of Crocodyliformes exclusively known for the Brazilian Late Cretaceous Bauru Basin. This lineage reveals how diverse was the morphology and ecology of terrestrial Crocodyliformes during the Late Cretaceous of Gondwana. Here is described Armadillosuchus arrudai gen. et sp. nov., a sphagesaurid that presents some mammal-like morphological features, such as propalinal and alternate unilateral jaw occlusion pattern and heavy body armor, composed of a rigid shield and mobile-banded section as in extant armadillos (Xenarthra, Dasypodidae). These unusual morphological features contrast to the double row of osteoderms observed on the closest relatives of A. arrudai. As its mammal analogs, A. arrudai presents some evidence of fossoriality and an exclusive terrestrial life style in contrast to the extant alligatorids and crocodylids. (C) 2008 Elsevier Ltd. All rights reserved.
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