Kronokotherium was made a separate genus because the specimen differs from Desmostylus in the arrangement of the major molar cusps and its smaller size,[3] but it has been synonymized with Desmostylus by most authors.[1]
Pronina, I. G. (1957). "A new desmostylid, Kronokotherium brevimaxillare gen. nov., sp. nov., from the Miocene deposits of Kamchatka". C. R. Acad. Sci. URSS. 117: 310–12.