Dingavis longimaxilla was named by O'Connor et al. (2016) [A large basal ornithuromorph with the following unique combination of characters: rostrum forms 63–65% of total skull length; jugal process of lacrimal caudolaterally excavated; both upper and lower jaws edentulous; length of carpometacarpus + major digit exceeds humeral length by 25%; short alular metacarpal (13.7% of major metacarpal); tarsometatarsus with small but sharp medial and lateral plantar crests, plantar surface not excavated; metatarsal II much shorter than metatarsal IV; metatarsal II and IV trochlea plantarly displaced; and metatarsal II trochlea strongly angled craniomedially.]. Its type specimen is IVPP V20284, a skeleton (a nearly complete adult individual preserved in dorsal view with gastroliths and trace impressions of integument around the neck), and it is a 3D body fossil. Its type locality is Sihedang, Lingyuan, which is in an Aptian lacustrine mudstone/shale in the Jiufotang Formation of China. It is the type species of Dingavis.