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On the Systematic Position of Eosipterus yangi Ji et Ji, 1997 among Pterodactyloids
Author(s) -
Junchang Lü,
Chunling GAO,
Qingjin MENG,
Jinyuan LIU,
Qiang JI
Publication year - 2006
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2006.tb00287.x
Subject(s) - tibia , ulna , humerus , phalanx , anatomy , holotype , wing , orthodontics , genus , geology , biology , medicine , zoology , structural engineering , engineering
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.