alatemioceneursavusskullfromguanghegansuchina

IVPP-IR

	alatemioceneursavusskullfromguanghegansuchina
	Qiu Zhanxiang; Deng Tao; Wang Banyue
	2014
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	52 期号:3 页码:265
摘要	An almost complete Ursavus skull in association with its mandible is described. The skull was recently found from upper part of Liushu Formation in Linxia Basin. Its stratigraphic level and geologic age are correlated to the late Bahean ALMA/S,~8 Ma. It represents a new species, here named Ursavus tedfordi. Cladistic analysis is conducted using the TNT software, based on a matrix of 11 taxa and 37 characters. The tree 5 of the 8 most parsimonious trees is chosen as the most reliable to reflect the phylogenetic history of the ursid clade. As the tree 5 shows, after divergence from the Oligocene-Early Miocene hemicyonids (Cephalogale), the ursid clade first yielded two stem-taxa: Ballusia elmensis and B. orientalis, the latter of which being an aberrant branch. Then, two major subclades emerged: one comprising Kretzoiarctos, Agriarctos and Ailurarctos, the other containing all Ursavus species and their descendants including all living bears (excluding Ailuropoda). Kretzoiarctos may not be the direct ancestral form of the giant panda as Abella and colleagues (2012) suggested, but the ancestral form of the lineage of Indarctos (+Agriotherium ?). Among the numerous Ursavus species, U. tedfordi is the most advanced and closest related to the living bears (excluding Ailuropoda) in morphology, however, might belong to a side-branch, judging by the autapomorphies possessed by it.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/13659
专题	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	Qiu Zhanxiang,Deng Tao,Wang Banyue. alatemioceneursavusskullfromguanghegansuchina[J]. 古脊椎动物学报,2014,52(3):265.
APA	Qiu Zhanxiang,Deng Tao,&Wang Banyue.(2014).alatemioceneursavusskullfromguanghegansuchina.古脊椎动物学报,52(3),265.
MLA	Qiu Zhanxiang,et al."alatemioceneursavusskullfromguanghegansuchina".古脊椎动物学报 52.3(2014):265.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
记甘肃广河晚中新世祖熊头骨化石.pdf（704KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载