Isotopic evidence for an early shift to C₄ resources by Pliocene hominins in Chad.

@article{LeeThorp2012IsotopicEF,
  title={Isotopic evidence for an early shift to C₄ resources by Pliocene hominins in Chad.},
  author={Julia A Lee-Thorp and Andossa Likius and Hassane Ta{\"i}sso Mackaye and Patrick Vignaud and Matt Sponheimer and Michel Brunet},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2012},
  volume={109 50},
  pages={20369-72}
}
Foods derived from C(4) plants were important in the dietary ecology of early Pleistocene hominins in southern and eastern Africa, but the origins and geographic variability of this relationship remain unknown. Carbon isotope data show that Australopithecus bahrelghazali individuals from Koro Toro in Chad are significantly enriched in (13)C, indicating a dependence on C(4) resources. As these sites are over 3 million years in age, the results extend the pattern of C(4) dependence seen in… CONTINUE READING