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Stable Isotope-Based Diet Reconstructions of Turkana Basin Hominins

Cerling, Thure E ; Manthi, Fredrick Kyalo ; Mbua, Emma N ; Leakey, Louise N ; Leakey, Meave G ; Leakey, Richard E ; Brown, Francis H ; Grine, Frederick E ; Hart, John A ; Kaleme, Prince ; Roche, Hélène ; Uno, Kevin T ; Wood, Bernard A

Proceedings of the National Academy of Sciences of the United States of America, June 2013, Vol.110(26), pp.10501-10506 [Periódico revisado por pares]

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  • Título:
    Stable Isotope-Based Diet Reconstructions of Turkana Basin Hominins
  • Autor: Cerling, Thure E ; Manthi, Fredrick Kyalo ; Mbua, Emma N ; Leakey, Louise N ; Leakey, Meave G ; Leakey, Richard E ; Brown, Francis H ; Grine, Frederick E ; Hart, John A ; Kaleme, Prince ; Roche, Hélène ; Uno, Kevin T ; Wood, Bernard A
  • Assuntos: Humanities and Social Sciences ; Archaeology and Prehistory ; Sciences (General)
  • É parte de: Proceedings of the National Academy of Sciences of the United States of America, June 2013, Vol.110(26), pp.10501-10506
  • Descrição: Hominin fossil evidence in the Turkana Basin in Kenya from ca. 4.1 to 1.4 Ma samples two archaic early hominin genera and records some of the early evolutionary history of Paranthropus and Homo. Stable carbon isotopes in fossil tooth enamel are used to estimate the fraction of diet derived from [C.sup.3] or [C.sup.4] resources in these hominin taxa. The earliest hominin species in the Turkana Basin, Australopithecus anamensis, derived nearly all of its diet from [C.sup.3] resources. Subsequently, by ca. 3.3 Ma, the later Kenyanthropus platyops had a very wide dietary range--from virtually a purely [C.sup.3] resource-based diet to one dominated by [C.sup.4] resources. By ca. 2 Ma, hominins in the Turkana Basin had split into two distinct groups: specimens attributable to the genus Homo provide evidence for a diet with a ca. 65/35 ratio of [C.sup.3]- to [C.sup.4]-based resources, whereas P. boisei had a higher fraction of [C.sup.4]-based diet (ca. 25/75 ratio). Homo sp. increased the fraction of [C.sup.4]-based resources in the diet through ca. 1.5 Ma, whereas P. boisei maintained its high dependency on [C.sup.4]-derived resources. Theropithecus | hominid www.pnas.org/cgi/doi/10.1073/pnas.1222568110
  • Idioma: Inglês

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