期刊
SCIENCE
卷 323, 期 5918, 页码 1197-1201出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1168132
关键词
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资金
- Holt Family Foundation
- Wenner-Gren Foundation for Anthropological Research
- Natural Environment Research Council [NE/C519446/1] Funding Source: researchfish
Hominin footprints offer evidence about gait and foot shape, but their scarcity, combined with an inadequate hominin fossil record, hampers research on the evolution of the human gait. Here, we report hominin footprints in two sedimentary layers dated at 1.51 to 1.53 million years ago (Ma) at Ileret, Kenya, providing the oldest evidence of an essentially modern human-like foot anatomy, with a relatively adducted hallux, medial longitudinal arch, and medial weight transfer before push-off. The size of the Ileret footprints is consistent with stature and body mass estimates for Homo ergaster/erectus, and these prints are also morphologically distinct from the 3.75-million-year-old footprints at Laetoli, Tanzania. The Ileret prints show that by 1.5 Ma, hominins had evolved an essentially modern human foot function and style of bipedal locomotion.
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