Brigitte Senut and Martin Pickford, the discoverers of Orrorin tugenensis, suggested that the features of S. tchadensis are consistent with a female proto-gorilla.
Brigitte Senut e Martin Pickford, os descubridores de Orrorin tugenensis, suxeriron que as características de S. tchadensis son concordantes coas dunha femia de protogorila.