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Implications of new early Homo fossils from Ileret, east of Lake Turkana, Kenya
TLDR
Two new cranial fossils from the Koobi Fora Formation, east of Lake Turkana in Kenya, are described that have bearing on the relationship between species of early Homo and confirm the distinctiveness of H.’shabilis and H.erectus, independently of overall cranial size, and suggest that these two early taxa were living broadly sympatrically in the same lake basin for almost half a million years. Expand
Diet of Paranthropus boisei in the early Pleistocene of East Africa
TLDR
Stable isotopes are used to show that Paranthropus boisei had a diet that was dominated by C4 biomass such as grasses or sedges, which may indicate that the remarkable craniodental morphology of this taxon represents an adaptation for processing large quantities of low-quality vegetation rather than hard objects. Expand
Stable isotope-based diet reconstructions of Turkana Basin hominins
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.Expand
Isotopic evidence of early hominin diets
TLDR
There is a trend toward greater consumption of 13C-enriched foods in early hominins over time, although this trend varies by region, and hominin carbon isotope ratios also increase with postcanine tooth area and mandibular cross-sectional area, which could indicate that these foods played a role in the evolution of australopith masticatory robusticity. Expand
Dietary changes of large herbivores in the Turkana Basin, Kenya from 4 to 1 Ma
TLDR
Overall, ecological assemblages of C3-browsing, C3–C4 mixed feeding, and C4-grazing taxa in the Turkana Basin fossil record that are different from any modern ecosystem in East or Central Africa are found. Expand
Early Pleistocene third metacarpal from Kenya and the evolution of modern human-like hand morphology
TLDR
A newly discovered metacarpal from Kaitio, Kenya, dates to 1.42 Mya and provides evidence for the evolution of the modern human hand more than 600,000 y earlier than previously documented, and suggests that an increased reliance on manipulatory behaviors indicated by the archeological record early in the Pleistocene selected for themodern human hand early on in the development of the genus Homo. Expand
Diet of Theropithecus from 4 to 1 Ma in Kenya
TLDR
Stable isotope analyses of tooth enamel from T. brumpti and T. oswaldi in Kenya show that the earliest Theropithecus at 4 Ma had a diet dominated by C4 resources, and throughout the 4- to 1-Ma time range has a diet that is more C4-based than contemporaneous hominins of the genera Australopithecus, Kenyanthropus, and Homo. Expand
A 17-My-old whale constrains onset of uplift and climate change in east Africa
TLDR
This stranded whale fossil provides the first constraint on the initiation of east African uplift from near sea level at 17 Ma, limiting the timing and initial elevation of environmental change indicated by geodynamic and climatic modeling, paleosols, isotopes, paleobotany, and the mammalian fossil record. Expand
Ancient genomes reveal complex patterns of population movement, interaction, and replacement in sub-Saharan Africa
TLDR
The contraction of diverse, once contiguous hunter-gatherer populations in sub-Saharan Africa is demonstrated, and the resistance to interaction with incoming pastoralists of delayed-return foragers in aquatic environments is suggested. Expand
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