~2,840,000 years old  
Locality: Sterkfontein Member 4, Sterkfontein, Cradle of Humankind, South Africa
(age between 4.18 Ma and 1.5 Ma based on Biochron and Paleomag) |
~3,065,000 years old 
Locality: Koobi Fora Tulu Bor Member, Koobi Fora Fromation, East Lake Turkana, Kenya
(age between 3.44 Ma and 2.69 Ma based on K-Ar) |
~3,065,000 years old
Locality: Sterkfontein Member 2, Sterkfontein, Cradle of Humankind, South Africa
(age between 4.18 Ma and 1.95 Ma based on Biochron and Paleomag) |
~3,250,000 years old
Locality: Koro-Toro, (Koro Toro) Djurab Desert, Chad
(age between 3.5 Ma and 3 Ma based on Biochronology) |
~3,450,000 years old 
Locality: Omo Member A, Omo Shungura, northern Lake Turkana, Ethiopia
(age between 3.53 Ma and 3.37 Ma based on K-Ar) |
~3,485,000 years old
Locality: Koobi Fora Lokochot Member, Koobi Fora Formation, East Lake Turkana, Kenya
(age between 3.6 Ma and 3.37 Ma based on K-Ar) |
~3,500,000 years old
Locality: locality LO-6N, Lomekwi, Kataboi Member, West Turkana, Nachukui Formation, other platyops specimens (paratype) from lower Lomekwi Member, Kenya
(age between 3.6 Ma and 3.4 Ma based on K-Ar) |
~3,500,000 years old 
Locality: Galili, Awash Basin, Ethiopia
(age between 4 Ma and 3 Ma based on ) |
~3,575,000 years old
Locality: Middle Awash Maka, Middle Awash area, Ethiopia
(age between 3.75 Ma and 3.4 Ma based on K-Ar) |
~3,600,000 years old
Locality: Woranso-Mille, Afar Rift, Ethiopia
(age between 3.6 Ma and 3.6 Ma based on K-Ar) |
~3,680,000 years old
Locality: Laetoli, Upper Laetolil Beds, Garusi, Tanzania
(age between 3.77 Ma and 3.59 Ma based on K-Ar) |
~3,745,000 years old
Locality: Koobi Fora Moiti Member, Moiti Member, Koobi Fora Formation, East Lake Turkana, Kenya
(age between 3.97 Ma and 3.52 Ma based on K-Ar) |
~3,910,000 years old 
Locality: Gona West Margin 5, Gona drainage, Awash Basin, Ethiopia
(age between 4.21 Ma and 3.61 Ma based on K-Ar, paleomag) |
|
