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[dinosaur] Campylognathoides-like pterosaur from Lower Jurassic of England





Ben Creisler
bcreisler@gmail.com


A new paper:

Michael O’Sullivan & Martin Rigby (2017)
The first evidence of a Campylognathoides-like pterosaur in the Toarcian (Lower Jurassic) Whitby Mudstone Formation of Lincolnshire, England.
Proceedings of the Geologists' Association (advance online publication)
doi: http://dx.doi.org/10.1016/j.pgeola.2016.12.009
http://www.sciencedirect.com/science/article/pii/S0016787817300020



While pterosaurs occur in the Lower Jurassic strata of Britain and Germany, only the family Rhamphorhynchidae is currently known found in both. A newly discovered humerus from the Whitby Mudstone Formation of Lincolnshire challenges this and is distinguished from all other Lower Jurassic British pterosaurs by its possession of a quadrangular deltopectoral crest. This is a rare morphotype which only occurs in Eudimorphodon, Austriadraco, Raeticodactylus, Carniadactylus and Campylognathoides. The Lincolnshire humerus compares well with these taxa but is identified as a cf. Campylognathoides sp. based on its age and palaeobiogeography. The genus Campylognathoides is a common pterosaur in the Toarcian Posidonia Shale of Germany and the new humerus supports continuity of pterosaur populations across central Laurasia.