The specimen KNM ER 1484 was found inside the Notochoerus scotti Faunal Zone (NS), in the Area 130 just below the KBS tuff. This tuff is correlated with the H2 tuff in the Shungura Formation uncontroversially dated about 1.8 My (Cerling et al. 1979). Last datations of the KBS tuff found (...)
There is no Equus inside Omo deposits before member G of the Shungura Formation (Eisenmann, 1985). According to Table 1 of Alemseged (2003) Tuff G, at the base of member G, is 2.33 Ma old; member H is contemporary with The Olduvai event – 1.95 to 1.77 My.
Thanks to de Heinzelin (1983) many (...)