Sinopterus? liui (Meng 2015) is represented by a virtually complete and articulated specimen attributed to Sinopterus, but nests here at the base of Tupuxuara longicristatus.

Above: Members of the Tapejaridae led by Germanodactylus cristatus. A gradual increase in size and the size of the crest is evident. Sinopterus, Huaxipterus, Tapejara, Tupandactylus, Tupuxuara, the Goshura specimen and Thalassodromeus are shown.

Kellner AWA 2012. A new unusual tapejarid (Pterosauria, Pterodactyloidea) from the Early Cretaceous Romualdo Formation, Araripe Basin, Brazil. Cambridge University Press 103 (3-4) The Full Profession: A Celebration of the Life and Career of Wann Langston, Jr., Quintessential Vertebrate Palaeontologist September 2012 , pp. 409-421.

Kellner, AWA 2013. A new unusual tapejarid (Pterosauria, Pterodactyloidea) from the Early Cretaceous Romualdo Formation, Araripe Basin, Brazil. Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 103 (3–4): 1.

Meng X 2015. A New Species of Sinopterus from Jehol Biota and Reconstraction of Stratigraphic Sequence of the Jiufotang Formation. A Thesis for the Master Degree of Science in the Graduate School of Chinese Academy of Sciences, directed by Wang X-L. (in Chnese)

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