FIGURE 1. Dental terminology used in this paper (after Topachevsky, 1969; Sarica and Şen, 2003): 1, hypocone; 2, hypoconid; 3, posterior collar; 4, mesocone; 5, mesoconid; 6, metacone; 7, metaconid; 8, paracone; 9, anterior collar; 10, protocone; 11, protoconid; 12, entoconid.
FIGURE 2. Ultrastructure of the right M1 enamel of †Anomalomys gaillardi from the late Miocene (MN 9) of Grytsiv, Ukraine (NMNHU-P 22/2417).
FIGURE 3. Ultrastructure of the left M2 enamel of †Anomalomys gaillardi from the late Miocene (MN 9) of Grytsiv, Ukraine (NMNHU-P 22/2548).
FIGURE 4. Ultrastructure of the left m1 enamel of †Anomalomys gaillardi from the late Miocene (MN 9) of Grytsiv, Ukraine (NMNHU-P 22/2261).
FIGURE 5. Ultrastructure of the left m2 enamel of †Anomalomys gaillardi from the late Miocene (MN 9) of Grytsiv, Ukraine (NMNHU-P 22/2326).
FIGURE 6. Ultrastructure of the right m3 enamel of †Anomalomys gaillardi from the late Miocene (MN 9) of Grytsiv, Ukraine (NMNHU-P 22/2392).
FIGURE 7. Ultrastructure of the right M3 enamel of †Pliospalax macoveii from the early Pliocene (MN 14) of Krasnopol, Ukraine (NMNHU-P 37/325).
FIGURE 8. Ultrastructure of the right M3 enamel of †Pliospalax odessanus from the middle Pliocene (MN 15) of Odesa Catacombs, Ukraine (NMNHU-P О/1328).
FIGURE 9. Ultrastructure of the right M2 enamel of †Spalax minor from the late Pleistocene (MQR 8) of Tarkhankut, Crimea, Ukraine (NMNHU-P 50/1302).
FIGURE 10. Ultrastructure of the right M3 enamel of recent Spalax microphthalmus from Ukraine (NMNHU-P 4839).
FIGURE 11. Ultrastructure of the right M3 enamel of recent Spalax leucodon from Ukraine (NMNHU-P 2238/6).
