abstract:Utahdactylus was a genus of extinct reptile from the Kimmeridgian-Tithonian-age Upper Jurassic Morrison Formation of Utah, USA. Based on DM 002/CEUM 32588 (an incomplete skeleton described as including a fragment of the skull, a cervical vertebra, three back vertebrae, and a caudal vertebra, ribs, a scapulacoracoid, and limb bones), Czerkas and Mickelson (2002) identified it as a "rhamphorhynchoid" pterosaur.