Yuanansuchus maopingchangensis sp nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China

doi:10.7717/peerj.1903

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 图书馆1

	Yuanansuchus maopingchangensis sp nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China
	Liu, Jun
刊名	PEERJ
	2016-04-05
卷号	4
关键词	Triassic Anisian Badong Formation Temnospondyli Capitosauria Capitosauroidea
DOI	10.7717/peerj.1903
文献子类	Article
英文摘要	A second species of Yuanansuchus, Y. maopingchangensis, is erected for new temnospondyl material from the Maopingchang site, Yuanan County, Hubei Province, China. These specimens are from the same horizon that produced Y. laticeps, the type species. Y. maopingchangensis shares the following features with Y. laticeps: postorbital portion of skull occupied more than 1/3 of skull length; tabular horn directed laterally; lateral line sulci continuous, well impressed; supraorbital sensory canal enters lacrimal; preorbital projection of jugal less than half length of snout; and vomerine plate short. However, Y. maopingchangensis differs from Y. laticeps in having an elongated skull, frontal extending posteriorly to the level of the posterior orbital margin, closed otic fenestra, cultriform process of parasphenoid extending to the level of the anterior margin of the interpterygoid vacuities, and absence of fodina vomeralis. Analysis of a new capitosaur phylogenetic data matrix, containing 56 characters and 29 species, confirms that the two species from Yuanan are sister taxa and that Capitosauroidea can be divided into two major clades: one including Parotosuchus, Eryosuchus, Calmasuchus and Cherninia, and another including Mastodonsaurus, Yuanansuchus, Stanocephalosaurus, Procyclotosaurus, Paracyclotosaurus, Antarctosuchus, Eocyclotosaurus, Quasicyclotosaurus, Tatrasuchus and Cyclotosaurus.
WOS关键词	PHYLOGENETIC ANALYSIS ; POSTCRANIAL SKELETON ; AMPHIBIANS ; REVISION ; ONTOGENY ; SKULL
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000374160600006
资助机构	National Basic Research (973) project(2012CB821902) ; National Natural Science Foundation of China(41472017)
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/7111]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jun. Yuanansuchus maopingchangensis sp nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China[J]. PEERJ,2016,4.
APA	Liu, Jun.(2016).Yuanansuchus maopingchangensis sp nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China.PEERJ,4.
MLA	Liu, Jun."Yuanansuchus maopingchangensis sp nov., the second capitosauroid temnospondyl from the Middle Triassic Badong Formation of Yuanan, Hubei, China".PEERJ 4(2016).