Ornithopods first appeared during the early Jurassic period, perhaps around 200 million years ago, and survived until the end of the Cretaceous period. Ornithopods were among the dinosaurs which died out during the mass extinction of 65 million years ago.
The Ornithopoda infraorder, together with the infraorders of Ceratopsia ("horned faces") and Pachycephalosauria ("thick-headed lizards") form the the suborder Cerapoda of the Ornithischian dinosaurs.
Ornithopod Dinosaur Timeline:
Ornithopods dinosaurs first appeared during the early Jurassic, about 200 million years ago, and survived until the end of the Cretaceous period, about 65 million years ago
Types of Ornithopod Dinosaurs
Here is a list of some Ornithopod dinosaurs:
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