Cranial osteology of Beipiaosaurus inexpectus

IVPP-IR > 中科院古脊椎所（2000年以后）

	Cranial osteology of Beipiaosaurus inexpectus
	Liao Chunchi; Xu Xing
	2019
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	57 期号:2 页码:117
摘要	Beipiaosaurus inexpectus, a key taxon for understanding the early evolution of therizinosaurians, has not been fully described since it was briefly reported on by Xu, Tang and Wang in 1999. Here we present a detailed description of the cranial anatomy of the holotype of this theropod dinosaur. B. inexpectus is unique in some of its cranial features such as the postorbital process of the frontal is large and its abrupt transition from the orbital rim, a long and sharp anterior process of the parietal, the elongate ventral ramus of the squamosal process of parietal, and external mandibular fenestra deep dorsoventrally and extremely posteriorly located. A number of plesiomorphic cranial features (such as relatively large dentary and less downturned degree of dentary symphysis) suggest that B. inexpectus is an early-branching Therizinosaurian, as proposed by previous studies. New information derived from our study is not only important for our understanding of the cranial anatomy of B. inexpectus but also significant to the study of the evolution of Therizinosauria.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/16049
专题	中科院古脊椎所（2000年以后）中国科学院古脊椎动物与古人类研究所
作者单位	中国科学院古脊椎动物与古人类研究所
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Liao Chunchi,Xu Xing. Cranial osteology of Beipiaosaurus inexpectus[J]. 古脊椎动物学报,2019,57(2):117.
APA	Liao Chunchi,&Xu Xing.(2019).Cranial osteology of Beipiaosaurus inexpectus.古脊椎动物学报,57(2),117.
MLA	Liao Chunchi,et al."Cranial osteology of Beipiaosaurus inexpectus".古脊椎动物学报 57.2(2019):117.

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