piceanus in a Late Cretaceous swamp. (Illustration by Brian Engh ... discovery by analyzing fossils found in the Williams Fork Formation in Rangely, Colorado, in the mid-to late 1980s, along ...
According to the study conducted by a team of paleontologists from the University of Colorado Boulder the ancient mammal lived approximately 70 to 75 million years ago during the Late Cretaceous ...
"Its genus name is Heleocola, which literally translates to 'swamp dweller.'" Eberle said that finding mammal fossils from the Cretaceous ... from the Williams Fork Formation.