Paleontologists from the University of Texas at Austin have identified a new species of ancient beaver from the fossilized remains found at several sites...
Paleontologists have examined 142 new specimens, including 160 teeth, of the extinct medium-sized beaver species Steneofiber depereti from the Late Miocene...
The newly-identified species of beaver, Microtheriomys articulaquaticus, represents the oldest semi-aquatic rodent in North America and the oldest amphibious...