Paleontologists discover Colorado ‘swamp dweller’ mammal that lived alongside dinosaurs Phys.orgPaleontologists unearth 70-million-year-old ‘swamp dweller’ fossil in Colorado FOX 31 DenverSwamp-Dwelling Creature From Age of Dinosaurs Discovered in Colorado NewsweekNew Fossil Mammal Was A “Giant” of the Cretaceous Utah State ParksPaleontologists discover new Colorado mammal that lived alongside dinosaurs 9News.com KUSA