Paramacellodid lizard skulls from the Jurassic Morrison Formation at Dinosaur National Monument, Utah

被引:77
作者
Evans, SE
Chure, DC
机构
[1] UCL, Dept Anat & Dev Biol, London WC1E 6BT, England
[2] Natl Pk Serv, US Dept Interior, Disosaur Natl Monument, Jensen, UT 84035 USA
关键词
D O I
10.1080/02724634.1998.10011037
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
New skull material of the Jurassic lizard Paramacellodus from the Morrison Formation of Dinosaur National Monument, Utah, permits a more comprehensive description of the anatomy of this lizard, previously known mainly from jaw and postcranial remains. The Morrison form cannot be satisfactorily distinguished from its British counterpart and the specimens are referred to Paramacellodus sp.. cf. P. oweni. Cladistic analysis places Paramacellodus, and thus related genera attributed to the family Paramacellodidae Estes, 1983, as a sister taxon of Scincoidea (Cordyliformes + Scincidae). rather than of Cordyliformes alone.
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页码:99 / 114
页数:16
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