首页>>文献首页>>文献正文

The oldest plesiosaur (Reptilia, Sauropterygia) from Antarctica

wenjie99 添加于 2011/9/2 16:33:14  1701次阅读 | 0次推荐 | 0个评论

Antarctic plesiosaurs are known from the Upper Cretaceous López de Bertodano and Snow Hill Island formations (Campanian to upper Maastrichtian), which crop out within the James Ross Basin region of the Antarctic Peninsula. Here we describe the first plesiosaur fossils from the Lachman Crags Member of the Santa Marta Formation, north-western James Ross Island. This material constitutes the stratigraphically oldest plesiosaur occurrence presently known from Antarctica, extending the occurrence of plesiosaurians in this continent back to Santonian times (86.3-83.5 Mya). Furthermore, MN 7163-V represents the first plesiosaur from this region not referable to the Elasmosauridae nor Aristonectes, indicating a greater diversity of this group of aquatic reptiles in Antarctica than previously suspected.

作 者:Alexander Wilhelm Armin Kellner, Tiago Rodrigues Simões, Douglas Riff, Orlando Grillo, Pedro Romano, Helder de Paula, Renato Ramos, Marcelo Carvalho, Juliana Sayão, Gustavo Oliveira, Taissa Rodrigues
期刊名称: Polar Research
期卷页: 7 June 2011 第卷 第期 页
学科领域:地球科学 » 地质学 » 古生物学和古生态学
添加人是否为作者:
原文链接:http://www.polarresearch.net/index.php/polar/article/view/7265
DOI: 10.3402/polar.v30i0.7265
ISBN:
关键词: James Ross Island; Antarctica; plesiosauria; Late Cretaceous; Museu Nacional; oldest
备 注:
文献笔记

   
导出选项:

评论 (0 个评论)

Page 1 of 1
<<<[1]>>>

举报 | Archiver | 科学网( 京ICP备07017567 )

GMT+8, 2011-2-15 11:31

Powered by ScienceNet.cn

Copyright © 2007- 科学时报社