Updated November 18, 2020
with the realization that this is not Sinopterus jii, as previously noted. I believed an online image that labeled it such and did not reference earlier comments. Apologies for the confusion.
Earlier I found this image of a sinopterid with broken wings
as I sought the specimen number in order to nest it in the large pterosaur tree (LPT, 253+ taxa). A kind reader (TG) replied it was from the Sauriermuseusm in Aathal, Germany. Today it enters the LPT.
Reconstructions of the body and skull
enabled scoring of the Aathal specimen as it nested basal to tapejarids. Two Sinopterus specimens nested basal to the tupuxuarids. Outgroups include other China pterosaurs in the Dsungaripteridae and Shenzoupteridae.
The frontal + parietal crest on the Aathal specimen
is distinctive and points to a wider variation than typically imagined for this genus.
The antorbital fenestra is not taller than the orbit in the Aathal specimen (Fig. 3). Traditional phylogenies link azhdarchids with tapejarids in an invalid clade ‘Azhdarchoidea‘. The LPT has never supported this clade (also see Peters 2007), which is based on one character: an antorbital fenestra taller than the orbit. Pterosaur workers have been “Pulling a Larry Martin” by counting on this one character and by excluding pertinent taxa that would have shown them this is a convergent trait ever since the first cladograms appeared in Kellner 2003 and Unwin 2003.
Kellner AWA 2003. Pterosaur phylogeny and comments on the evolutionary history of the group. Geological Society Special Publications 217: 105-137.
Lü J and Yuan C 2005. New tapejarid pterosaur from Western Liaoning, China. Acta Geologica Sinica. 79 (4): 453–458.
Peters D 2007. The origin and radiation of the Pterosauria. In D. Hone ed. Flugsaurier. The Wellnhofer pterosaur meeting, 2007, Munich, Germany. p. 27.
Unwin DM 2003. On the phylogeny and evolutionary history of pterosaurs. Pp. 139-190. in Buffetaut, E. & Mazin, J.-M., (eds.) (2003). Evolution and Palaeobiology of Pterosaurs. Geological Society of London, Special Publications 217, London, 1-347.