Overview
- Researchers led by Jesse Martin report that Little Foot’s cranial base, including an elongated nuchal plane, differs from Australopithecus africanus and A. prometheus.
- The study, published in the American Journal of Biological Anthropology, argues the specimen likely represents a previously unsampled human ancestor.
- Authors refrain from reclassifying the fossil and recommend that the Sterkfontein excavation team propose any new species name.
- The analysis contrasts Little Foot with the A. prometheus type specimen MLD 1, finding the Sterkfontein skull does not share its defining trait suite.
- Key uncertainties persist over the fossil’s age, with published estimates of about 3.67 million years contested by arguments that it is no older than 2.8 million years.