Probrachylophosaurus bergei, New Hadrosaur from the Judith River Fm of Montana

A New Brachylophosaurin Hadrosaur (Dinosauria: Ornithischia) with an Intermediate Nasal Crest from the Campanian Judith River Formation of Northcentral Montana. 2015. Freedman Fowler and Horner, PLoS One.

Probrachylophosaurus bergei is a previously missing link between a preceding species, Acristavus, which lived about 81 million years ago, and later form Brachylophosaurus, which lived about 77.5 million years ago. PR