Upper Cheek Teeth
Morphologies similar to ?Allohippus sp. from NS zone are found in MA zone : KNM ER 2688, 2691, and 4025 ; the decidual FS 75 2 has no origin (Fig. 28).
Associated Limb bones
KNM ER 1275 are associated MC, MT, phalanges, and Tarsals (Fig. 29).
– The fragmentary MC could belong to ?Allohippus sp. (Fig. 16).
– The MT is slender, smaller but similar to KNM ER 5358 and 4052 (Fig. 20) referred to ?Allohippus sp.
– The Ph1P is slender (measures 1-3), with a deep proximal diameter (5). It resembles Ph1P of contemporaneous European Equids (Venta Micena and Cueva Victoria) and also extant Wild Asses (Fig. 30).
– The Talus resembles those of extant large donkeys (Fig. 29, 31).