Order Ornithischia (Noun)
Meaning
Extinct terrestrial reptiles having bird-like pelvises: armored dinosaurs (thyreophorans); boneheaded and horned dinosaurs (marginocephalians); duck-billed dinosaurs (euronithopods).
Classification
Nouns denoting animals.
Examples
- The fossil record of the Ornithischia dates back to the early Triassic period.
- Ornithischia was a group of primarily herbivorous dinosaurs that dominated earth landscapes.
- Many species of Ornithischia were protected with body armor, spikes, or horns to fend off predators.
- As one of the two main divisions of dinosaurs, Ornithischia had distinct pelvis structures.
- Most notable members of Ornithischia are the ceratopsians or horned dinosaurs with crested heads.