Fig. 4 in Phyletic Diversification Of The Cormohipparion Occidentale Complex (Mammalia; Perissodactyla, Equidae), Late Miocene, North America, And The Origin Of The Old World Hippotherium Datum

Fig. 4. Diagram showing location of cranial measurements and cheek tooth measurement methodology. A, dorsal view. B, posterior view. A and B after Eisenmann et al. (1988). C, measurement of length and width of upper cheek teeth and length and width of protocone. D, measurement of MSTHT from base to tip of mesostyle at labial surface of cheek tooth.