Fukuititan nipponensis,A New Titanosauriform Sauropod from the Early Cretaceous Tetori Group of Fukui Prefecture,Japan  

作　　者：Yoichi AZUMA Masateru SHIBATA 

机构地区：[1]Fukui Prefectural Dinosaur Museum,51-11 Terao,Muroko,Katsuyama,Fukui 911-8601,Japan

出　　处：《Acta Geologica Sinica(English Edition)》2010年第3期454-462,共9页地质学报（英文版）

基　　金：one of accomplishments of the dinosaur project supported by the Fukui Prefecutral Government.

摘　　要：A titanosauriform dinosaur： Fukuititan nipponensis gen. et sp. nov. is erected based on the incomplete skeleton. It is characterized by elongated asymmetric tooth crown with a weak or absent labial groove and without lingual concavity; stalk-like epipophysis of cervical vertebra; the transverse width of the proximal end of the humerus approximately 32% of the humerus length; metacarpal longer, approximately 48 % of the radius and the distal end of the ischia slightly expanded. It represents the first relatively complete titanosauriform skeleton found from Japan. The discovery of Fukuititan indicates that the diversity and geographical distribution of Titanosauriformes are much higher than the previous thought.A titanosauriform dinosaur： Fukuititan nipponensis gen. et sp. nov. is erected based on the incomplete skeleton. It is characterized by elongated asymmetric tooth crown with a weak or absent labial groove and without lingual concavity; stalk-like epipophysis of cervical vertebra; the transverse width of the proximal end of the humerus approximately 32% of the humerus length; metacarpal longer, approximately 48 % of the radius and the distal end of the ischia slightly expanded. It represents the first relatively complete titanosauriform skeleton found from Japan. The discovery of Fukuititan indicates that the diversity and geographical distribution of Titanosauriformes are much higher than the previous thought.

关 键 词：Fukuititan TITANOSAURIFORMES Early Cretaceous JAPAN 

分 类 号：Q915[天文地球—古生物学与地层学]