Outline: a typical theropod

Hell Creek Fm., MontanaNamed 1924

Chirostenotes

KYE-roh-sten-OH-teez

"narrow hands"

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Length
about 1.7 m (6 ft)
Group
Theropods, Caenagnathidae
Found in
United States and Canada
Named by
Gilmore 1924

Size comparison

To scale

Where its fossils were found

The evidence

Today

22 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Chirostenotes

What it was like

Chirostenotes was a feathered, beaked dinosaur from the oviraptor family, about 1.7 meters (6 feet) long. It had long, slender fingers and long legs, and a toothless beak.

It probably ate plants, eggs and small animals, but no one knows for sure.

Its world

It lived in the Late Cretaceous in what is now Alberta, Canada. Its bones come from the Dinosaur Park Formation, where it shared the land with the tyrannosaurs Gorgosaurus and Daspletosaurus, the dome-headed Stegoceras and the small hunters Troodon and Saurornitholestes.

How it was found

Gilmore named Chirostenotes in 1924 from a pair of hands. For decades its hands, feet and jaws were found separately and given different names, until better skeletons showed they came from the same kind of animal.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Caenagnathidae

Sources: WikidataNamed in: C. W. Gilmore. 1924. A new coelurid dinosaur from the Belly River Cretaceous of Alberta. Canada Department of Mines Geological Survey Bulletin (Geological Series) 38(43):1-12