Paleontologists unearth 70-million-year-old ‘swamp dweller’ fossil in Colorado FOX 31 DenverPaleontologists discover Colorado ‘swamp dweller’ mammal that lived alongside dinosaurs Phys.orgSwamp-Dwelling Creature From Age of Dinosaurs Discovered in Colorado Newsweek75-Million-Year-Old “Swamp Dweller” Among Largest Late Cretaceous Mammals Ever Found IFLSciencePaleontologists discover prehistoric Colorado resident that lived alongside dinosaurs 9News.com KUSA