It seems to contain a mixture of bipedal and arboreal features | Jul 2001: A number of fragmentary fossils discovered between 1997 and 2001, and dating from 5 |
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The fossil is about 4 million years old and has not yet been classified or published in the scientific literature, though it is said to fall between Ardipithecus ramidus and Australopithecus afarensis | 2000, Balter and Gibbons 2000• The discoverers have assigned them to a new subspecies, Homo sapiens idaltu, and say that they are anatomically and chronologically intermediate between older archaic humans and more recent fully modern humans |
Jul 1998: Analysis of new A.
2002, Balter and Gibbons 2002 These specimens have since been allocated to Homo georgicus Gabunia et al | Following further study, the finders have decided that the differences between them and other fossils justify assigning them to a new species, Ardipithecus kadabba |
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Apr 2010: Two partial skeletons assigned to a new species, Australopithecus sediba, were discovered at Malapa in South Africa in 2008 | Swift, JQ; Nelson, WJ September 2012 |
It also has a surprising amount of variability from other boisei skulls, which may have implications for how hominid fossils are classified | These claims are being treated with caution so far Aiello and Collard 2001 |
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Journal of Human Evolution, 16:741-61 | 1976a , The Source South Bend, IN: privately published by author |
Proceedings of the National Academy of Sciences, USA, 91:6780-6.