Outline: a typical theropod

Nemegt Fm., MongoliaNamed 1988

Anserimimus

AN-ser-ih-MY-mus

"goose mimic"

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Length
about 3.5 m (11 ft)
Group
Theropods, Ornithomimidae
Found in
Mongolia
Named by
Barsbold 1988

Size comparison

To scale

Where its fossils were found

The evidence

Today

1 find

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Anserimimus

What it was like

Anserimimus was an ornithomimid, a lightly built, toothless theropod shaped a bit like an ostrich. It was about 3.5 meters (11 feet) long. Its arms were strong for its group, with long, flat claws, which may have helped it dig or pull down branches.

Its world

It lived in the Late Cretaceous, in what is now Mongolia. The Nemegt Formation it comes from was a land of rivers and forests shared with Tarbosaurus, Therizinosaurus, Deinocheirus and the larger ornithomimid Gallimimus.

How it was found

Barsbold named Anserimimus in 1988, from one partial skeleton without a skull.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Ornithomimidae

Sources: WikidataNamed in: R. Barsbold. 1988. A new Late Cretaceous ornithomimid from the Mongolian People's Republic. Paleontological Journal 1988(1):122-125