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Jianchangnathus, new pterosaur from China



From: Ben Creisler
bscreisler@yahoo.com
 
A new online paper--don't know of the actual publication date will be 2012.
 
 
Jianchangnathus, new pterosaur from China
Xin Cheng, Xiaolin Wang, Shunxing Jiang & Alexander W.A. Kellner ("2011")
A new scaphognathid pterosaur from western Liaoning, China.
Historical Biology (advance online publication)
DOI:10.1080/08912963.2011.635423
http://www.tandfonline.com/doi/abs/10.1080/08912963.2011.635423

Abstract
A partial skeleton of a new pterosaur, Jianchangnathus robustus gen. et sp. 
nov. from western Liaoning, China, is described. The specimen (IVPP V16866) was 
collected near Linglongta, Jianchang County, whose deposits have a disputed age 
that range from Middle Jurassic to Early Cretaceous. The new species shares 
several features with the non-pterodactyloid Scaphognathus from the Late 
Jurassic deposits of southern Germany, such as a deep anterior end of the lower 
jaw, a piriform lower temporal fenestra with the ventral margin broader than 
the dorsal one and the interalveolar spacing of the maxillary teeth about three 
alveolar spaces, allowing its allocation to the Scaphognathidae. The main 
diagnostic features of J. robustus include the large maxillary process of the 
jugal, the convex alveolar margin of the lower jaw and the procumbent 
disposition of the first three pairs of dentary teeth. The new Chinese taxon 
also differs from Fenghuangopterus lii, which
 comes from the same deposit and is here regarded as Scaphognathidae incertae 
sedis, mainly by the lower number of teeth and several proportions of the wing 
elements. The discovery of J. robustus demonstrates a larger diversity in the 
pterosaur fauna of the Linglongta region so far dominated by the 
non-pterodactyloid clade Wukongopteridae.