Loxodonta adaurora (Maglio, 1970) Mammuthus subplanifrons is the oldest representative of the genus Mammuthus, known from around 6.2-3.75 million years ago during the late Miocene-early Pliocene in what is today South Africa and countries of East Africa, especially Ethiopia.

The type specimen is a partial lower third molar (MMK 3920) collected from the Vaal River in South Africa.

[1][2] Specimens have been reported from South Africa, Kenya, Ethiopia, Malawi, and possibly Uganda and the Democratic Republic of the Congo, spanning from around 6.2 to 3.75 million years ago.

[6] Specimens intermediate between M. subplanifrons and the later species Mammuthus africanavus have been reported from the Late Pliocene Hadar Formation, Ethiopia, dating to around 3.5 million years ago.

[7] Isotope analysis of specimens from South Africa suggests that M. subplanifrons was a flexible feeder.