Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya.
Department of Biology, University of Utah, Salt Lake City, UT, USA; Department of Geology and Geophysics, University of Utah, Salt Lake City, UT, USA.
J Hum Evol. 2020 Mar;140:102338. doi: 10.1016/j.jhevol.2017.05.005. Epub 2017 Oct 13.
Carbon isotope ratios of mammalian teeth from the Kanapoi site in northern Kenya are interpreted in the context of C and C derived resources to investigate the paleoecology of Australopithecus anamensis. δC values of large mammals, when compared at the taxon level, show an ecosystem that is strongly biased towards mixed feeders and browsers. However, sufficient C resources were present such that some C dominated grazers were also present in the large mammal fauna. Analyses of micromammals shows that their diets were C dominated or C-C mixed. Carbon isotope studies of primates shows that the major primate tribes-Colobini, Papioini, Hominini-all made some use of C resources in their respective diets; the Hominini had a higher fraction of C diet resources than the other primate tribes represented in the fossil record.
肯尼亚北部 Kanapoi 遗址出土的哺乳动物牙齿的碳同位素比值，结合 C 和 C 衍生资源进行了解释，以研究南方古猿 anamensis 的古生态学。在分类群水平上比较大型哺乳动物的 δC 值表明，该生态系统强烈偏向于混合食者和食草动物。然而，存在足够的 C 资源，使得一些 C 主导的食草动物也存在于大型哺乳动物群中。对小型哺乳动物的分析表明，它们的饮食以 C 为主或 C-C 混合。灵长类动物的碳同位素研究表明，主要的灵长类部落——Colobini、Papioini、Hominini——在各自的饮食中都利用了一些 C 资源；与化石记录中代表的其他灵长类部落相比，Hominini 有更高比例的 C 饮食资源。
