Dohoin Usu Formation

The Dohoin Usu Formation is a Late Cretaceous (Campanian) geologic formation in Mongolia. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

Fossil content
The formation has provided the following fossils:
 * Reptiles
 * Goniopholididae indet.
 * Hadrosauridae indet.
 * Nanhsiungchelyidae indet.
 * Gastropods
 * Gastropoda indet.