Osborn, H.F. 1936. Volume I: Mœritherioidea, Deinotherioidea, Mastodontoidea. In Proboscidea: A Monograph of the Discovery, Evolution, Migration and Extinction of the Mastodonts and Elephants of the World. The American Museum Press, New York, 15 Aug 1936: [i]-xl, 1-802. ≡