Tag Archive for 'Judith River Formation'

Visualization of a small tyrannosaur feeding on a carcass of a larger tyrannosaur. Image credit: Yu Xin, Shen Li & Liang Junwei, Aarhus Universitet.

Ancient Bite Marks Suggest Tyrannosaurs Were Not Just Hunters

May 6, 2026 by News Staff

New research led by Aarhus University paleontologists overturns the image of tyrannosaurs as pure apex predators. An analysis of 16 precisely mapped bite...

Reconstruction of Lokiceratops rangiformis surprised by a crocodilian in the 78-million-year-old swamps of northern Montana. Image credit: Andrey Atuchin / Museum of Evolution in Maribo, Denmark.

New Species of Horned Dinosaur Had Unusual, Curving Blade-Like Horns on Back of Its Frill

Jun 20, 2024 by Enrico de Lazaro

Paleontologists have identified a new genus and species of centrosaurine dinosaur from the fossilized remains found in the Judith River Formation in the...

Daspletosaurus wilsoni is recognized by the unique arrangement of small hornlets around the eye. Image credit: Andrey Atuchin / Badlands Dinosaur Museum.

Newly-Discovered Tyrannosaur Species Fills Gap in Lineage Leading to Tyrannosaurus rex

Nov 25, 2022 by Natali Anderson

Daspletosaurus wilsoni, a tyrannosaurid dinosaur that lived 76.5 million years ago in what is now Montana, the United States, displays a unique combination...