To account for substantial morphological variation in the genus Proconsul, two species, P. nyanzae and P. heseloni, were placed in the new genus Ekembo. Ekembo is one of the earliest ape (Hominoids), after having diverged from the old world monkeys. The Dendropithecidae appear to be sister to Ekembo. Ekembo was found to be paraphyletic with respect to Proconsul and the more advanced Hominoidea.[2][3]
Ekembo is distinguished from other early Miocene catarrhines on the basis of dental and mandibular morphology. The molarsofEkembo are more rounded or bunodont than those of Proconsul and the canine teeth taper to a point while those of Proconsul are more "blade-like". E. heseloni is medium-sized while E. nyanzae is larger. Both E. nyanzae and E. heseloni are moderately sexually dimorphic.
^Kieran P. McNulty, David R. Begun, Jay Kelley, Fredrick K. Manthi and Emma N. Mbua (2015). "A systematic revision of Proconsul with the description of a new genus of early Miocene hominoid". Journal of Human Evolution. 84: 42-61. doi:10.1016/j.jhevol.2015.03.009.
