A new lizard from the Lower Cretaceous of Shandong, China
A new lizard from the Lower Cretaceous of Shandong, China
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来自中国山东下白垩统的一种新蜥蜴
DOI：
10.1080/02724634.1999.10011158
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发表时间：
1999
影响因子：
1.4
通讯作者：
Chen Zhengwu
中科院分区：
文献类型：
--
作者：
K. Gao;Chen Zhengwu
本文描述了山东莱阳下白垩统青山群陡山组中一新的有鳞类化石。两个不完整的下颌骨代表了一种形态上独特的蜥蜴分类群，它有沉重的颌骨和高度专门化的破碎齿，齿排大大缩短。系统发育分析结果表明，该新分类单元属于棘形目，根据与颌骨结构相关的特征状态可与蜥蜴形目归为一组。
ABSTRACT A new squamate taxon is described from the Lower Cretaceous Doushan Formation, Qingshan Group, Laiyang, Shandong Province, China. Two incomplete mandibles represent a morphologically peculiar lizard taxon, which has heavily built jaws and highly specialized crushing teeth in a greatly shortened tooth row. Results of phylogenetic analysis show that the new taxon is a member of the Scincomorpha, and can be grouped with the Lacertiformes on the basis of character states related to jaw structures.