Isolated cheek teeth of N. nakayamai. (a) KNM-NA46424, right P4. (b) KNM-NA46435, left dp4. (c) KNM-NA46436, left M3. (d) KNM-NA46429, right M3. (e) KNM-NA46431, right P3. (f) KNM-NA46430, left P4. (e) KNM-NA46423, right P3. (h) KNM-NA47591, right M1.