- Psittacosauridae
Taxobox
name = Psittacosaurids
fossil_range =Early Cretaceous
image_width = 200px
image_caption = Model "Psittacosaurus " and juveniles.
regnum =Animal ia
phylum =Chordata
classis =Sauropsid a
superordo =Dinosaur ia
ordo =Ornithischia
subordo =Cerapoda
infraordo =Ceratopsia
familia = Psittacosauridae
familia_authority = Osborn, 1923
subdivision_ranks = Genera
subdivision =
* "Hongshanosaurus "
* "Psittacosaurus " (type)The Psittacosauridae were a group ofceratopsia n dinosaurs. The family Psittacosauridae was first named by Osborn in 1923. The first exact definition as aclade was in 2005 byPaul 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 ".
Wikimedia Foundation. 2010.