hominids [hominins], who were presumably processing these bones for contained fatty marrow"; and, "These are the earliest documented cut marks made by hominids [hominins]."  As concluded by the excavators, the evidence from the site shows "..a major function of the earliest known tools was meat and marrow processing of large carcasses." This pattern of butchery processing of large prey was maintained by hominins well into the Pliocene.

Dakanihylo
The Dakanihylo (Daka) layer is 22 to 45 m thick and composed of pumice sandstone that is cross-bedded; it is situated in the southern half of the Bouri horst and  dated to 1 mya. Fossils found in the layer suggest open grassland—some 377 species of bovids (including three new species and two new genera); and water-margin habitats—species of Kobus antelopeStaples High School runner Hannah DeBalsi during the girls high school cross country race at Greenwich Point, Tuesday afternoon, Oct. 1, 2013. DeBalsi came in first with a Greenwich Point meet record time of 14:55.

Greenwich High School runner Amy Wyle during the girls high school cross country meet at Greenwich Point, Tuesday afternoon, Oct. 1, 2013. Wyle finished in fifth place with a time of 17:28.
Photo: Bob Luckey

Staples High School runner, Erica Hefnawy, smiles before the start of the girls high school cross country meet at Greenwich Point, Tuesday afternoon, Oct. 1, 2013. Hefnawy finished second in the race.
Photo: Bob Luckey

At right, Staples High School runner, Erica Hefnawy, during the start of the girls high school cross country meet at Greenwich Point, Tuesday afternoon, Oct. 1, 2013. Hefnawy