地质学报（英文版）2006，Vol.80Issue(5)：643-646,4.
On the Systematic Position of Eosipterus yangi Ji et Ji, 1997 among Pterodactyloids
On the Systematic Position of Eosipterus yangi Ji et Ji, 1997 among Pterodactyloids
摘要
Abstract
A comparison of the new specimen with the holotype of Eosipterus from western Liaoning Province indicates that Eosipterus is a valid genus, which belongs to the family Ctenochasmatidae. The revised diagnosis of Eosipterus includes the wing span is less than 1.25 meters, the length of the ulna is nearly equal to these of wing phalanx 2 and the tibia, humerus is longer than tibia, and the ratio of metatarsal to tibia is approximately 0.40.关键词
Eosipterus/systematic position/Yixian Formation/western LiaoningKey words
Eosipterus/systematic position/Yixian Formation/western Liaoning分类
天文与地球科学引用本文复制引用
L(U) Junchang,GAO Chunling,MENG Qingjin,LIU Jinyuan,JI Qiang..On the Systematic Position of Eosipterus yangi Ji et Ji, 1997 among Pterodactyloids[J].地质学报（英文版）,2006,80(5):643-646,4.基金项目
This study is supported by the National Key Basic Research and Development Program (Grant 2006CB701405) and the China Geological Survey (Grant 200413000024). （Grant 2006CB701405）
