Abstract

The several known archeological occurrences from the Shungura Formation (Members E and F) are discussed within the context of their particular depositional and paleoenvironmental settings, and the broader context of the Pliocene of the Turkana Basin. These assemblages date from 2·3–2·4 Ma, and are among the oldest yet known in Africa. In situ archeological assemblages are restricted to the distal edge of fluviatile levees, behind gallery forests and at the edge of open savanna. Extensive and rather dense scatters of slightly disturbed quartz artifacts are linked to large expanses of braided stream situations. Lag components are derived from stream beds. There is no available evidence of occupation either under riverine or deltaic forest settings or on dryland. Hominid skeletal remains from this interval, none of which occur at or are directly associated with such archeological occurrences, are attributed to two hominid taxa. Most specimens represent a “robust” australopithecine and are attributed here to A. aethiopicus. A few hominid teeth are attributed to aff. Homo sp.

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