Dictionary of Human Evolution and Biology

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Ecological Hypothesis

Richard Leakey’s idea that animals evolved faster at Lake Rudolf than at Omo, a counter-proposal to Basil Cooke’s 1972 assertion that the dating of the Koobi Fora sites was too old, based on Cooke’s faunal correlation of pigs, elephants, and antelopes. Leakey’s response was that an ecological barrier had existed between Lake Rudolf and Omo. The original K-Ar dates at Koobi Fora were contaminated, however, and Cooke’s hypothesis eventually prevailed.

See KBS tuff.

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