Eotherapsid hypothesis for the origin of Monotremata

被引:2
|
作者
Ivakhnenko, M. F. [1 ]
机构
[1] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117997, Russia
基金
俄罗斯基础研究基金会;
关键词
Monotremata; Theromorpha; cranial morphology; LOWER JAW; EVOLUTION; RADIATION;
D O I
10.1134/S0031030109030010
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
Comparative study of the cranial structures (lateral wall of the braincase, temporal and tympanic regions) of mammals and theromorphs shows that Monotremata evolved from the eotherapsid stem of theromorphs, while therian mammals are descendants of eutherapsids.
引用
收藏
页码:237 / 250
页数:14
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