Outline: a typical theropod

Nemegt Fm., AlbertaNamed 1981

Avimimus

AY-vih-MY-mus

"bird mimic"

Type species Avimimus portentosus

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Length
about 1.5 m (5 ft)
Group
Theropods
Found in
Mongolia and Canada
Named by
Kurzanov 1981

Size comparison

To scale

Where its fossils were found

The evidence

Today

8 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Avimimus

What it was like

Avimimus was a small, bird-like dinosaur about 1.5 meters (5 feet) long. It had long legs for running, a short beak-like snout with a few tiny teeth and feathered arms. It belonged to the oviraptorosaurs and probably ate a mix of plants and small animals.

Its world

It lived in the Late Cretaceous in what is now Mongolia. Its bones come from the Nemegt and Baruungoyot formations, and it shared these lands with the ostrich-like Gallimimus and the armored Tarchia. Bones from Alberta, Canada have also been linked to it.

How it was found

Kurzanov named Avimimus in 1981. The type species is Avimimus portentosus. A bonebed in the Nemegt Formation holds several individuals together, which suggests that it may have lived in groups.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Oviraptorosauria

Sources: WikidataNamed in: S. M. Kurzanov. 1981. O neobuchnykh teropodakh iz verkhnego mela MNR [An unusual theropod from the Upper Cretaceous of Mongolia]. Fossil Reptiles of Mongolia. Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya, Trudy [The Joint Soviet-Mongolian Paleontological Expedition, Transactions] 24:39-50