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Global vegetation change through the Miocene/Pliocene boundary
Between 8 and 6 million years ago, there was a global increase in the biomass of plants using C4 photosynthesis as indicated by changes in the carbon isotope ratios of fossil tooth enamel in Asia,Expand
New four-million-year-old hominid species from Kanapoi and Allia Bay, Kenya
The mosaic of primitive and derived features shows this species to be a possible ancestor to Australopithecus afarensis and suggests that Ardipithecus ramidus is a sister species to this and all later hominids. Expand
Implications of new early Homo fossils from Ileret, east of Lake Turkana, Kenya
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
Growth processes in teeth distinguish modern humans from Homo erectus and earlier hominins
Differences in enamel growth are reported that show the earliest fossils attributed to Homo do not resemble modern humans in their development, and it seems likely that truly modern dental development emerged relatively late in human evolution. Expand
New hominin genus from eastern Africa shows diverse middle Pliocene lineages
New fossils discovered west of Lake Turkana, Kenya, which differ markedly from those of contemporary A. afarensis point to an early diet-driven adaptive radiation, provide new insight on the association of hominin craniodental features, and have implications for the understanding of Plio–Pleistocene hom inin phylogeny. Expand
Lothagam : the dawn of humanity in eastern Africa
Introduction, by Meave G. LeakeyGeology, Paleosols, and Dating, by Craig S. Feibel, Jonathan G. Wynn, and Ian McDougallCrustacea and Pisces, by Joel W. Martin, Sandra Trautwein, and Kathlyn M.Expand
Browsing and grazing in elephants: the isotope record of modern and fossil proboscideans
Abstract The diet of extant elephants (Loxodonta in Africa, Elephas in Asia) is dominated by C3 browse although some elephants have a significant C4 grass component in their diet. This isExpand
New specimens and confirmation of an early age for Australopithecus anamensis
Isotope dating confirms A.anamensis' intermediate age as being between those of Ardipithecus ramidus, and Australopithecus afarensis, and new specimens of maxilla, mandible and capitate show that this species is demonstrably more primitive than A.afarensis. Expand
Morphology of Australopithecus anamensis from Kanapoi and Allia Bay, Kenya.
Based on the limited postcranial evidence available, A. anamensis appears to have been habitually bipedal, although it retained some primitive features of its upper limbs, and there appears to be no autapomorphies precluding A.Anamensis from ancestry of A. afarensis. Expand