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sharp-clawed runner
Anserimimus
Say it like this: “AN-suhr-im-EYE-muhs”
Anserimimus planinychus
Anserimimus ate plants 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
- 1988 · Barsbold, R.
- Hip height
- Not established
- Length
- 3 m · 10 ft
- Weight
- 50–170 kg · 110–375 lb
- Found in
- Mongolia · Nemegt
- Food and walking
- Herbivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Ornithomimidae
The story in short
Anserimimus was formally named in 1988 by R. Barsbold. The name means “goose mimic.”
It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Mongolia, including the Nemegt Formation. It was a herbivore and walked on two legs.
Published estimates put Anserimimus at a length near 3 m and a body mass around 50–170 kg.
On the family tree it sits in Ornithomimidae, among the theropod dinosaurs.
Close relatives
Aepyornithomimus
Aepyornithomimus tugrikinensis
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Archaeornithomimus
Archaeornithomimus asiaticus
Late Cretaceous (Coniacian · Santonian · Campanian) · roughly 89.8 to 72.2 million years ago
Dromiceiomimus
Dromiceiomimus brevitertius
Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago