JONATHAN J. M. CALEDE and SAMANTHA S. B. HOPKINS. (2012). NEW MATERIAL OF ALPHAGAULUS PRISTINUS (MAMMALIA, RODENTIA MYLAGAULIDAE) FROM THE DEEP RIVER FORMATION (MONTANA, U.S.A.): IMPLICATIONS FOR ECOLOGY, ONTOGENY, AND PHYLOGENY. Journal of Vertebrate Paleontology, 32(1), 151–165.
doi:10.2307/41407714