Outline: a typical theropod

Dinosaur Park Fm., AlbertaNamed 2013

Leptorhynchos

"slender beak"

Type species Citipes elegans

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Omnivore
Group
Theropods, Caenagnathidae
Found in
Canada and United States
Named by
Longrich et al. 2013

Where its fossils were found

The evidence

Today

9 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Leptorhynchos

What it was like

Leptorhynchos was a small feathered dinosaur from the caenagnathids, toothless relatives of Oviraptor. It is known from lower jaws that end in an upturned beak.

Its world

It lived in the Late Cretaceous in what is now Texas, in the United States. Its jaws come from the Aguja Formation, where it shared the land with the dome-headed Stegoceras and the armored Edmontonia.

How it was found

Longrich and colleagues named Leptorhynchos in 2013. A second species from Alberta was first placed in it, but has since been moved to a genus of its own, Citipes.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Caenagnathidae

Sources: WikidataNamed in: N. R. Longrich, K. Barnes, and S. Clark, L. Millar. 2013. Caenagnathidae from the upper Campanian Aguja Formation of west Texas, and a revision of the Caenagnathinae. Bulletin of the Peabody Museum of Natural History 54(1):23-49