 a basal pterosaur, due to its long tail and large but not elongate cervical vertebrae, but without the typical groove in its forelimb bones.It was regarded as a "rhamphorhynchoid" based on an unprepared specimen in the most recent review of Morrison pterosaurs.In 2007, pterosaur specialist Chris Bennett published a redescription wherein he disagreed with Czerkas' and Mickelson's conclusions.