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sharp-clawed runner
Marshosaurus
Say it like this: “MARSH-o-SAWR-us”
Marshosaurus bicentesimus
Marshosaurus ate meat and walked on two legs. It lived in the Late Jurassic. Bones have been found in the United States.
- When
- Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago
- Named in
- 1976 · Madsen, J. H.
- Hip height
- Not established
- Length
- 4.5 m · 15 ft
- Weight
- 200 kg · 441 lb
- Found in
- the United States · Morrison
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Piatnitzkysauridae
The story in short
In 1976, J. H. Madsen published the name Marshosaurus. The name honors a person tied to the fossil or its study.
It lived in the Late Jurassic (Kimmeridgian · Tithonian), roughly 154.8 to 143.1 million years ago. Finds come from the United States, including the Morrison Formation. It was a carnivore and walked on two legs.
Published estimates put Marshosaurus at a length near 4.5 m and a body mass around 200 kg.
On the family tree it sits in Piatnitzkysauridae, among the theropod dinosaurs.