First record of Early Cretaceous pterosaur from the Ordos Region, Inner Mongolia,China

作者：Shu-an Ji

摘要：A new dsungaripterid pterosaur,Ordosipterus planignathus gen.et sp.nov.,is established on the incomplete articulated lower jaws from the Lower Cretaceous Luohandong Formation in Otog Qi,Ordos Region,Inner Mongolia,China.It differs from other dsungaripterids mainly by having broad and low dentary at and just behind the mandibular symphysis,flat dentary dorsal plane forming the distinct lateral ridge with the curved dentary lateral side,and lower alveoli arranged along the dentary dorsolateral margin with wide spacing that increases from rostral to caudal.It represents the first diagnostic pterosaur from the Ordos Region in Inner Mongolia,and further enlarges the geographical distribution of the family Dsungaripteridae from northwestern China(together with western Mongolia)to central North China.

发文机构：Institute of Geology Key Laboratory of Stratigraphy and Palaeontology

关键词：PTEROSAURIAEarlyCretaceousOrdosRegionInnerMongoliaChina

分类号： P53[天文地球—古生物学与地层学]