Definition of psittacosaurus in English:
A partly bipedal herbivorous dinosaur of the mid Cretaceous period, having a parrot-like beak and probably ancestral to other ceratopsians.
- Genus Psittacosaurus, infraorder Ceratopsia, order Ornithischia
- Psittacosaurus, meaning 'parrot lizard,' was a small, primitive ceratopsian, a plant-eating dinosaur.
- The Psittacosaurus was a strong, agile dinosaur with a powerful beak. A plant-eater, it lived in northeastern Asia between 144 million and 97 million years ago.
Definition of psittacosaurus in:
- US English dictionary
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