Psittacosauridae

Taxobox
name = Psittacosaurids
fossil_range = Early Cretaceous


image_width = 200px
image_caption = Model "Psittacosaurus" and juveniles.
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Ornithischia
subordo = Cerapoda
infraordo = Ceratopsia
familia = Psittacosauridae
familia_authority = Osborn, 1923
subdivision_ranks = Genera
subdivision =
* "Hongshanosaurus"
* "Psittacosaurus" (type)The Psittacosauridae were a group of ceratopsian dinosaurs. The family Psittacosauridae was first named by Osborn in 1923. The first exact definition as a clade was in 2005 by Paul Sereno: the stemclade consisting of "Psittacosaurus mongoliensis", Osborn 1923, and all species more closely related to "Psittacosaurus" than to "Triceratops horridus", Marsh 1889.

The group consists of basal ceratopsians from Asia living during the Lower Cretaceous. The only other known genus is "Hongshanosaurus".