Fossil specimen of S. dongi, National Museum of Natural Science
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Order:
†Pterosauria
Suborder:
†Pterodactyloidea
Family:
†Tapejaridae
Subfamily:
†Sinopterinae
Genus:
†Sinopterus Wang & Zhou, 2003
Type species
†Sinopterus dongi
Wang & Zhou, 2003
Synonyms
Huaxiapterus Lü & Yuan, 2005
Nemicolopterus? Wang et al., 2008
Sinopterus (meaning "Chinese wing") is a genus of tapejarid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China. It was first described and named by Wang Xiaolin and Zhou Zhonghe. Historically, there were multiple species attributed to the genus although only one is considered to be valid. Sinopterus is known for its proportionally large skull, which has a birdlike pointed beak, a long bony crest that starts with a tall premaxilla and goes back along the middle of the skull to form a point overhanging the rear of the skull, and its lack of teeth.
suggested that Sinopterus may actually be an intermediate step in the grade between H. jii and the other two Huaxiapterus species, making Sinopterus paraphyletic...
It is the third valid genus of tapejarid from the Jehol Biota, after Sinopterus and Eopteranodon. It contains one species, Huaxiadraco corollatus, originally...
with "Sinopterus" gui. A 2023 revision of Sinopterus concluded that it was impossible to assign the Nemicolopterus specimen to either Sinopterus or the...
Jiiddu language John Innes Institute JPMorgan Indian Investment Trust Sinopterus jii, an extinct species of pterosaur Sinocyclocheilus jii, a species of...
as the clade Tapejara + Sinopterus. They also re-defined the Tapejarinae as all species closer to Tapejara than to Sinopterus, and added a new clade,...
colleagues instead defined Tapejaridae more narrowly, as the clade Tapejara + Sinopterus. In the 2024 description of Torukjara, Pêgas recovered the following relationships...
paper describing this species compared the holotype jaw to Tapejara and Sinopterus, implicating its affinities to this clade (or at least a large amount...
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