Outline: a typical theropod

Lance Fm., WyomingNamed 1982

Pectinodon

"comb tooth"

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Group
Theropods, Troodontidae
Found in
United States
Named by
Carpenter 1982

Where its fossils were found

The evidence

Today

5 finds

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Pectinodon

What it was like

Pectinodon is known only from teeth. They belong to a troodontid, a small, feathered, big-eyed theropod. The teeth carry large, hooked bumps along their edges, like the teeth of a comb, which gave the genus its name. Some scientists think it is a species of Troodon.

Its world

It lived at the very end of the Late Cretaceous in what is now Wyoming and South Dakota. Its teeth come from the Lance and Hell Creek formations, where it lived alongside Tyrannosaurus, Triceratops and Edmontosaurus.

How it was found

Carpenter named Pectinodon in 1982.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Troodontidae

Sources: WikidataNamed in: K. Carpenter. 1982. Baby dinosaurs from the Late Cretaceous Lance and Hell Creek formations and a description of a new species of theropod. Contributions to Geology, University of Wyoming 20(2):123-134