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sharp-clawed runner
Tochisaurus
Say it like this: “TOHK-i-SAWR-us”
Tochisaurus nemegtensis
Tochisaurus ate meat and walked on two legs. It lived in the Late Cretaceous. Bones have been found in Mongolia.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 1991 · Kurzanov, S. M.; Osmólska, H.
- Hip height
- Not established
- Length
- 2.8 m · 9 ft
- Weight
- Not established
- Found in
- Mongolia · Nemegt
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Troodontidae
The story in short
The genus Tochisaurus dates to 1991, the year S. M. Kurzanov and H. Osmólska described it.
Fossils referred to Tochisaurus date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Mongolia, including the Nemegt Formation. It was a carnivore and walked on two legs.
Published estimates put Tochisaurus at a length near 2.8 m.
On the family tree it sits in Troodontidae, among the theropod dinosaurs.
Close relatives
Almas
Almas ukhaa
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Harenadraco
Harenadraco prima
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Hesperornithoides
Hesperornithoides miessleri
Late Jurassic (Kimmeridgian · Tithonian) · roughly 154.8 to 143.1 million years ago