Mononykus

Field photograph to come

DV-0359Nemegt Fm., Mongolia

Mononykus

DV-0359

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Carnivore
Length
about 1 m (3 ft)
Group
Theropods, Alvarezsauridae
Found in
Mongolia
Named by
Perle et al. 1993

Field notes

About Mononykus

Mononykus was a meat-eating theropod that lived in the Late Cretaceous, 84 to 66 million years ago. It belongs to the family Alvarezsauridae.

The Paleobiology Database lists 5 finds of Mononykus, from Mongolia. Its fossils come from rocks including the Nemegt Formation and the Djadokhta Formation. It was named by Perle et al. in 1993.

The evidence

Where its fossils were found

Today

5 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

To scale

How big was Mononykus?

0 m0.5 m1 m1.5 m
Mononykus: about 1 m (3 ft) · Person: 1.8 m (6 ft)Silhouette: typical theropod shape

Lived alongside

Found in the same rock formations.

Close relatives

Other members of Alvarezsauridae.

Sources: Paleobiology Database, WikidataNamed in: A. Perle, M. A. Norell, and L. M. Chiappe, J. M. Clark. 1993. Correction: Flightless bird from the Cretaceous of Mongolia. Nature 363:188