🔬 Discovery

KNM ER 1813

KNM-ER 1813

Date
1973 · confidence high
Place
Koobi Fora, Turkana, Kenya
Credited to
Kamoya Kimeu
Field
Cosmos & Earth

What was discovered

Fossil skull of Homo habilis found at Koobi Fora (Kenya) by Kamoya Kimeu in 1973, with a cranial capacity of only 510 cc despite showing fully adult, typical H. habilis morphology.

What it led to

  • Expansion of the Homo habilis fossil record in East Africa
  • Debate over cranial size variability within the species
  • Reinforcement of Koobi Fora as a key site for human evolution

Links

Sources✓ verified 2026-09-28