Genus
Extinct

Protognathus

replaced by Protognathosaurus
Zhang 1988
This taxon is considered replaced by of the valid taxon Protognathosaurus according to the Paleobiology Database. See the page for Protognathosaurus →
Bibliography
Original description
Y. Zhang. 1988. The Middle Jurassic dinosaur fauna from Dashapu, Zigong, Sichuan. Vol. I. Sauropod dinosaur (1). Shunosaurus. Sichuan Publishing House of Science and Technology, Chengdu