The first juvenile specimen of Manchurochelys manchoukuoensis from the   Early Cretaceous Jehol Biota

doi:10.7717/peerj.3274

CORC > 北京大学 > 地球与空间科学学院

	The first juvenile specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota
	Shao, Shuai ; Yang, Yang ; Li, Lan ; Sun, Da-Yong ; Zhou, Chang-Fu
刊名	PEERJ
	2017
关键词	Early Cretaceous Jehol Biota Sinemydidae Juvenile features Ontogeny Diversity CHINA TURTLES
DOI	10.7717/peerj.3274
英文摘要	A small juvenile turtle is described from the Early Cretaceous Jehol Biota, shedding light on the juvenile morphology and ontogeny of Manchurochelys manchoukuoensis. Several juvenile features are uncovered, such as a small and circular carapace (less than half of the adult), wide vertebral scales, and lateral carapacial fontanelles. In contrast to the adult morphology, which has an oval carapace, closed lateral fontanelles, and longer vertebrals 2-4, the juvenile of M. manchoukuoensis is more comparable to that of Sinemys lens, except for earlier occurrence of the well-ossified carapace of the latter. Differs from Changmachelys bohlini, and Ordosemys liaoxiensis, in which the circular carapace is relatively independent of ontogenetic age, and the lateral fontanelles are only closed in adult stage of O. liaoxiensis. Therefore, the trajectory of ontogenetic change appears to be highly diversified in the sinemydids.; Public Science and Technology Research Funds Projects of Land and Resources [201311120]; Liaoning BaiQianWan Talents Program [2014Q110]; SCI(E); ARTICLE; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473885]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Shao, Shuai,Yang, Yang,Li, Lan,et al. The first juvenile specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota[J]. PEERJ,2017.
APA	Shao, Shuai,Yang, Yang,Li, Lan,Sun, Da-Yong,&Zhou, Chang-Fu.(2017).The first juvenile specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota.PEERJ.
MLA	Shao, Shuai,et al."The first juvenile specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota".PEERJ (2017).