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ornithischians's Usage Examples:

ornithischians survived till the K–Pg extinction event 66 million years ago; the ankylosaurs and the cerapods.

Palaeontology†AnkylosaursTheropods†Heterodontosaurs†Ceratopsians†Ornithopods and Basal Neornithischians†Plesiosauria†Pterosauria†Stegosaurs†Sauropods†Thalattosuchians†Belemnites References NotesLiterature(2004): A Geologic Time Scale 2004, Cambridge University Press.

Upper Elliot Formation and it is among the most completely known early ornithischians, shedding new light on the origin of the group.

Upper Jurassic Shishugou Formation of China and the phylogeny of basal ornithischians".

According to Sereno (1986), Genasauria represents all ornithischians.

Neornithischia ("new ornithischians") is a clade of the dinosaur order Ornithischia.

of the dinosaur tree before the separation between ornithischians and saurischians.

Parksosauridae is a clade or family of small ornithischians which have previously been generally allied to hypsilophodontids.

The teeth wore unevenly with chewing and developed sharp ridges that allowed neornithischians to.

It was one of the earliest ornithischians.

According to Sereno (1986), Genasauria represents all ornithischians except for the most primitive ornithischian, Lesothosaurus.

and developed sharp ridges that allowed neornithischians to break down tougher plant food than other dinosaurs.

Two groups of ornithischians survived till the K–Pg extinction event 66 million years ago; the ankylosaurs and the cerapods.