Outline: a typical ornithopod

Udurchukan Fm., RussiaNamed 2003

Olorotitan

OH-loh-roh-TIE-tan

"giant swan"

Lived
72 to 66 million years ago, Late Cretaceous
Diet
Herbivore
Group
Ornithopods, Hadrosauridae
Found in
Russia
Named by
Godefroit et al. 2003

Where its fossils were found

The evidence

Today

1 find

70 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Olorotitan

What it was like

Olorotitan was a large duck-billed dinosaur with a long neck and a tall, hollow crest shaped like a fan or a hatchet. The crest probably helped it make loud calls and signal to others.

Its skeleton is one of the most complete duck-bills known from outside North America.

Its world

It lived about 72 to 66 million years ago, at the very end of the Cretaceous, in what is now far eastern Russia. Its bones come from the Udurchukan Formation, where it lived beside other duck-bills, Amurosaurus and Kerberosaurus.

How it was found

Godefroit and colleagues named Olorotitan in 2003. Only one find is known.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Hadrosauridae

Sources: WikidataNamed in: P. Godefroit, Y. Bolotsky, and V. Alifanov. 2003. A remarkable hollow-crested hadrosaur from Russia: an Asian origin for lambeosaurines. Comptes Rendus Palevol 2:143-151