Fig. 23. Cormohipparion skinneri, F 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. 23. Cormohipparion skinneri, F:AM 73909, Gidley Horse Quarry, Clarendon beds, Texas, medial Clarendonian. A, lateral view of cranium, modified from MacFadden (1984: fig. 133A). B, occlusal view of right upper cheek tooth dentition, reversed. After MacFadden (1984: fig. 133B). C, occlusal view of right lower cheek tooth dentition, reversed. D, right lateral view of mandible (reversed). After MacFadden (1984: fig. 136). Note dashed-line X showing the configuration of the metaconid, metastylid, and ectoflexid in P4 (for premolars) and the H pattern on M1 (for M1 and M2).