anewspeciesofsinamiafromwesternliaoningchina

IVPP-IR

	anewspeciesofsinamiafromwesternliaoningchina
	Zhang Jiangyong
	2012
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	50 期号:4 页码:322
摘要	A new species of sinamiid fish, Sinamia liaoningensis, is described from the Barremian-Aptian Yixian and Jiufotang formations of western Liaoning, China and the morphology of the sinamiid fishes is reviewed. The new materials reveal three synapomorphies of the Sinamiidae proposed by Grande and Bemis (1998): the presence of only a single median parietal; three pairs of extrascapular bones; and short dermopterotic about equal in length to parietal length. The new species was attributed to Sinamia because it has three synapomorphies of the genus: relative small postinfraorbitals, a long dorsal fin and rhombic scales. The new species is a big podgy fish and it differs from all other species of the genus in the shape of the rostral, nasal, preopercle, the size and shape of infraorbitals, more subinfraorbitals (3), less dorsal fin rays (18), more caudal fin rays (16), more scale rows (32) between the origin of the anal fin and the dorsal margin of the body, and lack of serrated scales. The anterior half of the caudal fin rays of S. liaoningensis sp. nov. has remains of thin fibrous actinotrichia.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/15454
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	Zhang Jiangyong. anewspeciesofsinamiafromwesternliaoningchina[J]. 古脊椎动物学报,2012,50(4):322.
APA	Zhang Jiangyong.(2012).anewspeciesofsinamiafromwesternliaoningchina.古脊椎动物学报,50(4),322.
MLA	Zhang Jiangyong."anewspeciesofsinamiafromwesternliaoningchina".古脊椎动物学报 50.4(2012):322.