Outline: a typical theropod

Dinosaur Park Fm., AlbertaNamed 1940

Caenagnathus

SEE-nag-NAY-thus

"recent jaw"

Type species Caenagnathus collinsi

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Group
Theropods, Caenagnathidae
Found in
Canada and United States
Named by
Sternberg 1940

Where its fossils were found

The evidence

Today

8 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Caenagnathus

What it was like

Caenagnathus was a feathered, toothless dinosaur from the oviraptor group, with a long, slender lower jaw that ended in a beak. It walked on two long legs.

Its jaws look a little like those of birds, and when they were first found they were thought to belong to a bird.

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 tyrannosaur Gorgosaurus, the armored Edmontonia and the small hunters Troodon and Dromaeosaurus.

How it was found

Sternberg named Caenagnathus in 1940, from a lower jaw. Other bones found later have been added, and some from younger rocks in South Dakota have also been placed in it.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Caenagnathidae

Sources: WikidataNamed in: R. M. Sternberg. 1940. A toothless bird from the Cretaceous of Alberta. Journal of Paleontology 14(1):81-85