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sharp-clawed runner
Monolophosaurus
Say it like this: “MON-oh-LOF-oh-SOR-uhs”
Monolophosaurus jiangi
Monolophosaurus ate meat and walked on two legs. It lived in the Middle Jurassic. Bones have been found in China.
- When
- Middle Jurassic (Bathonian · Callovian) · roughly 168.2 to 161.5 million years ago
- Named in
- 1993 · Zhao, X. J.; Currie, P. J.
- Hip height
- Not established
- Length
- 5–5.5 m · 16–18 ft
- Weight
- 475 kg · 1,047 lb
- Found in
- China · Shishugou
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Tetanurae
The story in short
Monolophosaurus was formally named in 1993 by X. J. Zhao and P. J. Currie. The name honors a person tied to the fossil or its study.
Fossils referred to Monolophosaurus date to the Middle Jurassic (Bathonian · Callovian), roughly 168.2 to 161.5 million years ago. Finds come from China, including the Shishugou Formation. It was a carnivore and walked on two legs.
Published estimates put Monolophosaurus at a length near 5–5.5 m and a body mass around 475 kg.
On the family tree it sits in Tetanurae, among the theropod dinosaurs.