~2,500,000 years old  
Locality: Taung, Taung, South Africa
(age between 3 Ma and 2 Ma based on Biochron) |
~2,685,000 years old 
Locality: Omo Member C, Member C, Omo Shungura, northern Lake Turkana, Ethiopia
(age between 2.85 Ma and 2.52 Ma based on K-Ar) |
~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) |
~3,050,000 years old 
Locality: Hadar Lower Kada Hadar Member (KH-BKT2), Hadar Formation, Hadar study area, Ethiopia
(age between 3.2 Ma and 2.9 Ma based on K-Ar) |
~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) |
~3,110,000 years old
Locality: Makapansgat, Makapan Valley, South Africa
(age between 3.32 Ma and 2.9 Ma based on Faunal correlation, paleomag) |
~3,110,000 years old
Locality: Omo Member B, Member B, Omo Shungura, northern Lake Turkana, Ethiopia
(age between 3.37 Ma and 2.85 Ma based on K-Ar) |
~3,225,000 years old
Locality: Hadar Denen Dora Member, Hadar Formation, Hadar study area, Ethiopia
(age between 3.25 Ma and 3.2 Ma based on K-Ar) |
~3,250,000 years old
Locality: Koro-Toro, (Koro Toro) Djurab Desert, Chad
(age between 3.5 Ma and 3 Ma based on Biochronology) |
~3,325,000 years old
Locality: Hadar-Dikika Basal Member, Dikika, Hadar Formation, Ethiopia
(age between 3.4 Ma and 3.25 Ma based on K-Ar) |
~3,350,000 years old
Locality: Hadar Sidi Hakoma Member, Hadar Formation, Hadar study area, Ethiopia
(age between 3.4 Ma and 3.3 Ma based on K-Ar) |
~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) |
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