Fossils of Large Metatherian Mammal Found in Colorado
Paleontologists have found a fossilized jaw fragment and three isolated teeth from a new, relatively large (by Late Cretaceous standards) metatherian species in the layers of the Williams Fork Formation in northwestern Colorado, the United States. An artist’s depiction of Heleocola piceanus in a Late Cretaceous swamp. Image credit: Brian Engh / LivingRelicProductions.com / Utah
