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sharp-clawed runner
Tanycolagreus
Say it like this: “tan-ee-KOL-uh-gree-us”
Tanycolagreus topwilsoni
Tanycolagreus 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
- 2005 · Carpenter, K.; Miles, C. A.; Cloward, K. C.
- Hip height
- 0.9 m · 3 ft
- Length
- 4 m · 13 ft
- Weight
- Not established
- Found in
- the United States · Morrison
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Coelurosauria
The story in short
Tanycolagreus was formally named in 2005 by K. Carpenter and colleagues.
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 Tanycolagreus at a length near 4 m and hips about 0.9 m high.
On the family tree it sits in Coelurosauria, among the theropod dinosaurs.
Close relatives
Aniksosaurus
Aniksosaurus darwini
Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago
Aratasaurus
Aratasaurus museunacionali
Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago
Bicentenaria
Bicentenaria argentina
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago