Family Tree:
Dinosauria
Ornithischia
Cerapoda
Marginocephalia
Ceratopsia
Neoceratopsia
Coronosauria
Protoceratopsidae
Dinosauria
Ornithischia
Cerapoda
Marginocephalia
Ceratopsia
Neoceratopsia
Coronosauria
Protoceratopsidae
Pronunciation: PROH-to-SEH-ruh-TOP-sih-day
Authors: Granger and Gregory
Year: 1923
Meaning: First horn faces (see etymology)
Locomotion: Bipedal (two legs) and Quadrupedal (four legs)
Synonyms: Protoceratopidae (Steel 1969)
Authors: Granger and Gregory
Year: 1923
Meaning: First horn faces (see etymology)
Locomotion: Bipedal (two legs) and Quadrupedal (four legs)
Synonyms: Protoceratopidae (Steel 1969)
[Sereno, 2005]Definition
The most inclusive clade containing Protoceratops andrewsi but not Triceratops horridus.
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Relationships
Further reading
• Granger W and Gregory WK (1923) "Protoceratops andrewsi, a pre-ceratopsian dinosaur from Mongolia, with an appendix on the structural relationships of the Protoceratops beds". American Museum novitates: no.72,