Psittacosaurus
3D Dinopedia Herbivorous
Period of life:
126-101 mya
Habitat:
Floodplains
Taxonomy:
Marginocephalians
Height:
0.6 m
Countries:
3D Dinopedia images/flags/China.png
3D Dinopedia images/flags/Mongolia.png
3D Dinopedia images/flags/Russia.png
Cretaceous period Psittacosaurus | 3D Dinopedia
Cretaceous period Psittacosaurus 3D Dinopedia
Cretaceous period Psittacosaurus 3D Dinopedia
Psittacosaurus is a herbivorous dinosaur of Ceratopsia group from the Early Cretaceous. Its fossils were first discovered by a group of archaeologists from the American Museum of Natural History in 1922, in Mongolia. The Psittacosaurus skull was shaped like a parrot's beak.
Mature Psittacosaurus was 1.5 metres long and weighed up to 100 kilograms. It had small forelimbs with tiny digits and strong hind limbs for locomotion. All limbs had four digits. Psittacosaurus skull was characterized by jaws without incisors, robust beak and bony crest at the top where the jaw muscles were attached. Later this decoration evolved into the bony neck frill and armour for later ceratopsians.
Like other herbivores, Psittacosaurs was used to swallowing small stones for rough feed easier digestion as it passed through the digestive system. Unlike other ancient reptiles, its jaws did not move up and down. It ground the food like millstones - the lower jaw slid forward and backward on the joint.
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