Reptilia - Ornithischia - Hadrosauridae
Full reference: J. R. Horner. 1992. Cranial morphology of Prosaurolophus (Ornithischia: Hadrosauridae) with descriptions of two new hadrosaurid species and an evaluation of hadrosaurid phylogenetic relationships. Museum of the Rockies Occasional Paper 2:1-119
Parent taxon: Hadrosauridae according to M. K. Vickaryous and M. J. Ryan 1997
See also Horner 1992
Sister taxa: Acheralichnus, Aquilarhinus, Arstanosaurus, Arstanosaurus akkurganensis, Cionodon, Claorhynchus, Diclonius, Edmontosaurinae, Eotrachodon, Euhadrosauria, Hadrosaurinae, Hadrosaurus breviceps, Hadrosaurus cavatus, Hadrosaurus minor, Hypsibema, Lambeosaurinae, Lapampasaurus, Maiasaurinae, Malefica, Microhadrosaurus, Neosaurus missouriensis, Ornithotarsus, Orthomerus, Parrosaurus, Prohadrosaurinae, Pteropelyx, Saurolophidae, Saurolophinae, Saurolophus krystofovici, Thespesius, Trachodon, Tridigitichnus, Troodon isfarensis, Tyrannosauropus, Willinakaqe, Yamatosaurus, Trachodontinae, Nectosaurus, Protrachodontinae
Subtaxa: none
Ecology: ground dwelling herbivore
Distribution: there are no occurrences of Gryposaurinae in the database