古脊椎动物学报2017,Vol.55Issue(2):145-161,17.
纤细滇美龙(Dianmeisaurus gracilis Shang & Li,2015)新材料
New information on Dianmeisaurus gracilis Shang & Li, 2015
摘要
Abstract
Dianmeisaurus gracilis is restudied on the basis of a new specimen.It provides some new information,especially that on the skull roof,to the species.The most striking of those new characters include the snout (preorbital region) shorter than the orbit,the interorbital septum extremely narrow,the frontal with a sharp process at both ends,and the posterior margin of the skull roof deeply V-shaped.A phylogenetic analysis with new information confirms that Dianmeisaurus is the sister group of Diandongosaurus and that these two genera,together with those Chinese taxa (Majiashanosaurus,Dianopachysaurus,Keichousaurus,and Dawazisaurus),form a monophyletic clade which is more closely related to the Nothosauroidea than to a clade formed by the European pachypleurosaurs.关键词
云南罗平/中三叠世/安尼期/始鳍龙类/纤细滇美龙Key words
Luoping, Yunnan, China/Anisian, Middle Triassic/small sized eosauropterygian,Dianmeisaurus gracilis分类
生物科学引用本文复制引用
尚庆华,李淳,吴肖春..纤细滇美龙(Dianmeisaurus gracilis Shang & Li,2015)新材料[J].古脊椎动物学报,2017,55(2):145-161,17.基金项目
国家自然科学基金(批准号:41372028)和中国科学院古生物化石挖掘与修理专项经费资助.This study was financially supported by the National Natural Science Foundation of China (no.41372028) and Founds for Paleontology Fieldwork and Fossil Preparation,CAS to SQH and Canadian Museum of Nature (#RC09) to XCW. (批准号:41372028)