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1. chinaXiv:201711.01900 [pdf]

Viviparity in a Triassic marine archosauromorph reptile

LI Chun; Olivier RIEPPEL; Nicholas C. FRASER
Subjects: Biology >> Zoology

Eggs or embryos have been reported in various groups of fossil reptiles, where viviparity is a common mode of reproduction in aquatic taxa such as the ichthyopterygians, some groups of sauropterygians, mosasauroids, some taxa of choristoderans and certain protorosaurs. Here, we describe a complete embryo of a marine protorosaur, based on a well-preserved, curled-up skeleton. The new discovery is referred to a taxon closely related to the remarkable long-necked Dinocephalosaurus. It further confirmed viviparity in an archosauromorph group and indicates an increasing taxonomic diversity not only within this group, but of Triassic marine reptiles in general.

submitted time 2017-11-07 From cooperative journals:《古脊椎动物学报》 Hits1933Downloads854 Comment 0

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