Kosmoceratops And Talos stock image
The horned dinosaur Kosmoceratops and small theropod Talos are known from rocks of the Kaiparowits Formation of Utah. They lived 76 million years ago in the Campanian stage of the Late Cretaceous, about ten million years before Triceratops roamed the American west.
Illustration by Sergey Krasovskiy