Scholarlink

Stable isotope data from fossil enamel and soils have contributed significantly to our understanding of hominin ecologyEcology in eastern AfricaEastern Africa, including the genus Paranthropus. We assembled enamel stable isotopic data from hominins (N = 222) and contemporaneous herbivores (N = 1744) collected from localities across the Eastern African Rift System (EARS)East African Rift System (EARS). Our analyses of hominin enamel δ13C values indicate a change towards increased consumption of C4 resources at 2.37 Ma. Enamel isotopic data from contemporaneous herbivores indicates significant variationVariation across EARSEast African Rift System (EARS) vegetation communities. These data indicate that (1) environmentsEnvironment in the southernmost portion of the EARS contained greater proportion of C3 vegetation, (2) within the Turkana BasinTurkana Basin, Shungura Formation environments were consistently more closed than those in the Koobi Fora and Nachukui formations, and (3) the Olduvai vegetation community potentially contained a greater proportion (relative to Turkana Basin localities) of grassesGrass utilizing a C4 subpathway indicative of more mesic conditions.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Isotopic Context of Paranthropus Within the Eastern African Rift System

  • 章节

  • 发表日期：

    2026年

查看全文
  • David B. Patterson,
  • Enquye W. Negash,
  • Kevin Uno,
  • Taylor Malasek,
  • Thure E. Cerling

摘要

Stable isotope data from fossil enamel and soils have contributed significantly to our understanding of hominin ecologyEcology in eastern AfricaEastern Africa, including the genus Paranthropus. We assembled enamel stable isotopic data from hominins (N = 222) and contemporaneous herbivores (N = 1744) collected from localities across the Eastern African Rift System (EARS)East African Rift System (EARS). Our analyses of hominin enamel δ13C values indicate a change towards increased consumption of C4 resources at 2.37 Ma. Enamel isotopic data from contemporaneous herbivores indicates significant variationVariation across EARSEast African Rift System (EARS) vegetation communities. These data indicate that (1) environmentsEnvironment in the southernmost portion of the EARS contained greater proportion of C3 vegetation, (2) within the Turkana BasinTurkana Basin, Shungura Formation environments were consistently more closed than those in the Koobi Fora and Nachukui formations, and (3) the Olduvai vegetation community potentially contained a greater proportion (relative to Turkana Basin localities) of grassesGrass utilizing a C4 subpathway indicative of more mesic conditions.