Outline: a typical ornithopod

Moreno Fm., CaliforniaNamed 2015

Augustynolophus

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Herbivore
Group
Ornithopods, Hadrosauridae
Found in
United States
Named by
Prieto-Márquez et al. 2015

Where its fossils were found

The evidence

Today

2 finds

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Augustynolophus

What it was like

Augustynolophus was a hadrosaur, or duck-billed dinosaur, a plant eater with a broad beak and many grinding teeth. It was a close relative of Saurolophus and had a flat, crestless skull.

Its world

It lived about 72 to 66 million years ago, near the very end of the age of dinosaurs, in what is now California. Its bones come from the Moreno Formation, which formed in the sea: its carcasses were probably washed out from the coast.

How it was found

Prieto-Márquez and colleagues named Augustynolophus in 2015, from bones first placed in Saurolophus. It is the official state dinosaur of California.

Close relatives

Other members of Hadrosauridae

Sources: WikidataNamed in: A. Prieto-Márquez, J. R. Wagner, and P. R. Bell, L. M. Chiappe. 2015. The late-surviving ‘duck-billed’ dinosaur Augustynolophus from the upper Maastrichtian of western North America and crest evolution in Saurolophini. Geological Magazine 152:225-241