hominid.gallery Atlas · Edition 2026
7,000,000 years Live data
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Australopithecines

Kenyanthropus platyops

3.5–3.2 Ma·300 ka·Discovered 1999
Location
Kenya, Lomekwi (west of Lake Turkana)
Coordinates
3.960, 36.220
Brain
400 cc
Height
140 cm

Description

Flat face and small teeth. Found near Lomekwi 3, the oldest known stone tool site (3.3 Ma).

Notable facts

  • Name means "flat-faced man of Kenya"
  • Genus assignment remains debated
  • Lomekwi 3 tools predate genus Homo
  • Contemporary of A. afarensis

Key specimens

KNM-WT 40000
Holotype cranium
Found at Lomekwi by Justus Erus in 1999.

Anatomy

Flat midface, small molars, intermediate brain size.

Locomotion

Bipedal.

Diet

Mixed diet, smaller molars suggest softer foods.

Tools & culture

Possibly associated with Lomekwian stone tools.

Where to see it

Nairobi National Museum.

Media & references

Kenyanthropus platyops skull (KNM-WT 40000 cast) · Museo UV Historia Natural · CC-BY-NC-4.0 · view on Sketchfab ↗
Leakey, Spoor, Brown, Gathogo, Kiarie, Leakey & McDougall (2001). New hominin genus from eastern Africa shows diverse middle Pliocene lineages. Nature. doi: 10.1038/35068500 ↗