Images of femoral bone (used to establish bipedalism) and type specimen of Orrorin tugenensis.
Fossil Item Type Metadata
Specimen/Species Time Range
Polar reversal and biostratigraphy
Specimen Data (Morphology)
Curved phalanx, human-like femur with cortical thickness suggesting bipedalism, human-like back teeth but chimp-like front teeth
Pickford, M., Senut, B., 2001. 'Millennium Ancestor', a 6-million-year-old bipedal hominid from Kenya - Recent discoveries push back human origins by 1.5 million years. South African Journal of Science 97, 22-22.
- Date Added
- April 17, 2017
- Item Type
- “Orrorin tugenensis,” Hominid Fossil Repository, accessed May 23, 2022, http://projects.leadr.msu.edu/hominidfossils/items/show/69.