abstract: Orrorin tugenensis (Kenya, ca. 6 Ma) is one of the earliest putative hominins in the fossil record. The Orrorin hypodigm includes three partial femora, with one of them-BAR 1002'00-preserving most of its proximal morphology and exhibiting inferred adaptations for terrestrial bipedalism. This specimen was originally described as being very human-like, even more so than later hominins, although subsequent multivariate analyses showed that it actually shares a distinctive shape with australopiths. 
journal: PaleoAnthropology