Pterorhynchus wellnhoferi (Czerkas and Ji 2002) Callovian, Middle Jurassic ~165mya, was the first wukongopterid/darwinopterid to be described. Originally it was famous for its soft rostral crest and later for its chin fuzz.
It also has a pretty nice wing tip ungual (Fig. 1) on its broken wing tip. According to most pterosaur experts, that ungual is not supposed to be there.
And I noticed something odd
in the lower abdomen. I can’t make out what it is, I’ll let you guess. It could be food. It could be a developing embryo and eggshell. It could be detritus.
Czerkas SA and Ji Q 2002. A new rhamphorhynchoid with a headcrest and complex integumentary structures. In: Czerkas SJ ed. Feathered Dinosaurs and the Origin of Flight. The Dinosaur Museum:Blanding, Utah, 15-41. ISBN 1-93207-501-1.
Lü J, Unwin DM, Jin X, Liu Y and Ji Q 2009. Evidence for modular evolution in a long-tailed pterosaur with a pterodactyloid skull. Proceedings of the Royal Society London B (DOI 10.1098/rspb.2009.1603.)
Lü J, Xu L, Chang H and Zhang X 2011b. A new darwinopterid pterosaur from the Middle Jurassic of Western Liaoning, northeastern China and its ecological implicaitions. Acta Geologica Sinica 85: 507-514.
Zhou C-F and Schoch RR 2011. New material of the non-pterodactyloid pterosaur Changchengopterus pani LÜ, 2009 from the Late Jurassic Tiaojishan Formation of western Liaoning. N. Jb. Geol. Paläont. Abh. 260/3, 265–275 published online March 2011.