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Ornithischia (Ornithischian) is an order of Dinosauria. There are 319 species of Ornithischian, in 243 genera and 21 families. This order has been around since the upper triassic epoch. It includes groups like Heterodontosaurids. They are herbivores. Reproduction was oviparous.

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EOL has data for 12 attributes, including:

Known occurrences, collected specimens and observations of ornithischian. View this species on GBIF