Marginocephalia

Pachycephalosauria

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Ceratopia

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Marginocephalia is a group of ornithischian dinosaurs that includes the thick-skulled pachycephalosaurids, and horned ceratopians. They were all herbivores, walking on two or four legs, and are characterized by a bony ridge or frill the back of the skull.

Related Topics:
Ornithischia - Dinosaur - Pachycephalosaurids - Ceratopians - Herbivore

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The clade evolved in the Jurassic period, and became common in the Upper Cretaceous.

Related Topics:
Clade - Jurassic - Cretaceous

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