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The Dinosauria$
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David Weishampel

Print publication date: 2004

Print ISBN-13: 9780520242098

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520242098.001.0001

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Basal Ceratopsia

Basal Ceratopsia

Chapter:
(p.478) Twenty-Two Basal Ceratopsia
Source:
The Dinosauria
Author(s):

You Hailu

Peter Dodson

Publisher:
University of California Press
DOI:10.1525/california/9780520242098.003.0025

Ceratopsia consists of Psittacosauridae and Neoceratopsia. Psittacosauridae is a monogeneric (Psittacosaurus) clade consisting of ten species, while basal Neoceratopsia is formed by eleven genera, with twelve species of basal Neoceratopsia being recognized. This chapter discusses the anatomy, phylogeny, and paleobiology of basal ceratopsians. Basal ceratopsians are small (1–3 m long), bipedal or quadrupedal herbivores. The best preserved and described specimens representing the major subgroups among basal ceratopsians are Psittacosaurus mongoliensis, Archaeoceratops oshimai, Protoceratops andrewsi, and Leptoceratops gracilis.

Keywords:   Ceratopsia, Psittacosauridae, Neoceratopsia, basal ceratopsians, Psittacosaurus mongoliensis, Archaeoceratops oshimai, Protoceratops andrewsi, Leptoceratops gracilis

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