Sinopterus

Sinopterus Temporal range: Early Cretaceous, 120 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
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
Genus synonymy Huaxiapterus Lü & Yuan, 2005 Species synonymy Huaxiapterus atavismus Lü et al., 2016 Sinopterus atavismus (Lü et al., 2016) Zhang et al. 2019 Sinopterus gui Li et al., 2003 Huaxiapterus jii Lü & Yuan, 2005 Sinopterus jii (Lü & Yuan, 2005) Kellner and Campos, 2007 Sinopterus lingyuanensis Lü et al., 2016

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.