Beipiaosaurus
Beipiaosaurus is a therizinosaur theropod dinosaur. It lived in the Lower Cretaceous, about 125 million years ago. Its fossil was found in the Yixian Formation near Beipiao, Liaoning Province of China.
| Beipiaosaurus Temporal range: Upper Jurassic – Lower Cretaceous
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| Restoration of Beipiaosaurus sp. | |
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| Genus: | Beipiaosaurus Xu, Tang & Wang, 1999
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The theroziosaurs were a group of theropods which became herbivorous. Beipiaosaurus had a toothless beak, cheek teeth, and protofeathers.
Beipiaosaurus Media
Skeletal composite of IVPP V11559 and STM 31-1
Size chart comparing an average individual of the primitive therizinosaurs Beipiaosaurus inexpectus with a 1.8 m (5.9 ft) tall male human. They have an estimated length of 2.2 m (7.2 ft) and weight between 45–91 kg (99–201 lb).[1][2]
Comparison between the mandibles of therizinosaurs (I is that of Beipiaosaurus)
Dorsal vertebrae of the holotype of Beipiaosaurus
Schematic comparison of the ilium of Beipiaosaurus (in B) and other related therizinosaurs
Feather impressions on the left arm from the holotype on display at the Paleozoological Museum of China
Diagram illustrating feather evolution stages. Beipiaosaurus falls within stage 1 and stage 2
Life restoration of the primitive therizinosaur Falcarius, Early Cretaceous.
Jianchangosaurus Restoration
