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Temporal range: Middle Jurassic, 155 Ma
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Family: Rhamphorhynchidae
Genus: Orientognathus
et al., 2015
O. chaoyangensis
Binomial name
Orientognathus chaoyangensis
et al., 2015

Orientognathus is a genus of rhamphorhynchid pterosaur from the Middle Jurassic of China. It is known from a single specimen which includes most of the skeleton and skull, and was first named and described in 2015 by Lü Junchang et al.. The taxon was found in the Tuchengzi Formation of China, which is slightly younger than the Tiaojishan Formation that most other Middle Jurassic pterosaurs from the region have been found in. The description study produced a phylogenetic analysis, which determined that Orientognathus was a basal member of Rhamphorhynchidae, possibly within Rhamphorhynchinae.[1]


  1. ^ Lü, J.; Pu, H.; Xu, L.; Wei, X.; Chang, H.; Kundrát, M. (2015). "A new rhamphorhynchid pterosaur (Pterosauria) from Jurassic deposits of Liaoning Province, China" (PDF). Zootaxa. 3911 (1): 119–129. doi:10.11646/zootaxa.3911.1.7. PMID 25661600.