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Daohugoupterus, new pterosaur from Upper Jurassic of Inner Mongolia, China



Ben Creisler
bcreisler@gmail.com


A new online paper:



Xin Cheng, Xiaolin Wang, Shunxing Jiang & Alexander W.A. Kellner (2014)
Short note on a non-pterodactyloid pterosaur from Upper Jurassic
deposits of Inner Mongolia, China.
Historical Biology (advance online publication)
DOI:10.1080/08912963.2014.974038
http://www.tandfonline.com/doi/full/10.1080/08912963.2014.974038#.VGofAPnF_To

Daohugou is an important locality of the Jurassic Yanliao Biota, where
only two pterosaurs have been described so far (Jeholopterus and
Pterorhynchus). Here we report a new genus and species, Daohugoupterus
delicatus gen. et sp. nov. (IVPP V12537), from this region, consisting
of a partial skeleton with soft tissue. The skull is laterally
compressed, differing from Jeholopterus. The antorbital fenestra is
larger than in Pterorhynchus. The upper temporal fenestra is unusually
small. The short cervical vertebrae bearing cervical ribs indicate
that it is a non-pterodactyloid flying reptile. The sternal plate is
triangular, being much wider than long. The deltopectoral crest of
humerus is positioned proximally and does not extend further down the
shaft, a typical feature of basal pterosaurs. Daohugoupterus also
differs from the wukongopterids and scaphognathids from the Tiaojishan
Formation at Linglongta, regarded to be about the same age as the
Daohugou Bed. The new specimen increases the Jurassic
non-pterodactyloid pterosaur diversity of the Yanliao Biota and is the
smallest pterosaur from Daohugou area so far.