A new genus and species of sabretooth, Oriensmilus liupanensis (Barbourofelinae, Nimravidae, Carnivora), from the middle Miocene of China suggests barbourofelines are nimravids, not felids

doi:10.1080/14772019.2019.1691066

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new genus and species of sabretooth, Oriensmilus liupanensis (Barbourofelinae, Nimravidae, Carnivora), from the middle Miocene of China suggests barbourofelines are nimravids, not felids
	Wang, Xiaoming 1,2; White, Stuart C.3; Guan, Jian 4
	2020-01-04
发表期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
页码	21
通讯作者	Wang, Xiaoming(xwang@nhm.org)
摘要	Since the early 2000s, a revival of a felid relationship for barbourofeline sabretooths has become popular due to recent discoveries of fragmentary fossils from Africa. According to this view, barbourofelines trace their common ancestor with felids through shared similarities in dental morphology going back to the early Miocene of Africa and Europe. However, whether or not such an idea is represented in the basicranial morphology, a conservative area of high importance in family-level relationships, is yet to be tested. A nearly complete skull of Oriensmilus liupanensis gen. and sp. nov. from the middle Miocene Tongxin Basin of northern China represents the most primitive known barbourofeline with an intact basicranial region, affording an opportunity to re-examine the relationship of felids and nimravines. We also present an update on East Asian records of barbourofelines. The new skull of Oriensmilus possesses a suite of characters shared with nimravines, such as the lack of an ossified (entotympanic) bullar floor, absence of an intrabullar septum, lack of a ventral promontorial process of the petrosal, presence of a small rostral entotympanic on the dorsal side of the caudal entotympanic, and a distinct caudal entry of the internal carotid artery and nerve that pierces the caudal entotympanic at the junction of the ossified and unossified caudal entotympanics. The absence of an ossified bullar floor in O. liupanensis and its presence in those from the middle Miocene of Sansan, France thus help to bracket the transition of this character, which must have happened in the early part of the middle Miocene. Spatial relationships between bullar construction and the middle ear configuration of the carotid artery in Oriensmilus strongly resemble those in nimravines but are distinctly different from felids and other basal feliforms. Despite the attractive notion that early barbourofelines arose from a Miocene ancestor that also gave rise to felids, the basicranial evidence argues against this view. :
关键词	Barbourofelinae basicranium phylogeny Tongxin Cenozoic Asia
DOI	10.1080/14772019.2019.1691066
关键词[WOS]	PHYLOGENETIC-RELATIONSHIPS ; MAMMALIA ; EVOLUTION ; TONGXIN ; BASIN ; SKULL
收录类别	SCI
语种	英语
WOS研究方向	Evolutionary Biology ; Paleontology
WOS类目	Evolutionary Biology ; Paleontology
WOS记录号	WOS:000506275500001
出版者	TAYLOR & FRANCIS LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/16835
专题	中科院古脊椎所（2000年以后）
通讯作者	Wang, Xiaoming
作者单位	1.Nat Hist Museum Los Angeles Cty, Dept Vertebrate Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.Univ Calif Los Angeles, Sch Dent, 10833 Le Conte Ave, Los Angeles, CA 90095 USA 4.Beijing Nat Hist Museum, 126 Tian Qiao Nan St, Beijing 100050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaoming,White, Stuart C.,Guan, Jian. A new genus and species of sabretooth, Oriensmilus liupanensis (Barbourofelinae, Nimravidae, Carnivora), from the middle Miocene of China suggests barbourofelines are nimravids, not felids[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2020:21.
APA	Wang, Xiaoming,White, Stuart C.,&Guan, Jian.(2020).A new genus and species of sabretooth, Oriensmilus liupanensis (Barbourofelinae, Nimravidae, Carnivora), from the middle Miocene of China suggests barbourofelines are nimravids, not felids.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,21.
MLA	Wang, Xiaoming,et al."A new genus and species of sabretooth, Oriensmilus liupanensis (Barbourofelinae, Nimravidae, Carnivora), from the middle Miocene of China suggests barbourofelines are nimravids, not felids".JOURNAL OF SYSTEMATIC PALAEONTOLOGY (2020):21.