Proconsul africanus skull (14 to 23 million years).
The Proconsul africanus skull was discovered by Mary Leakey in 1948 on Rusinga Island, Kenya. This specimen, based on the 1948 Leakey discovery, is the most complete Proconsul africanus cranium to date. Alan Walker reclassified Proconsul africanus, a Miocene hominoid, as heseloni in 1993. The skull is characterized by the absence of brow ridges (unlike in modern apes) and the presence of a projecting face. Members of this genus are considered dental apes because their teeth possessed ape-like features. Their teeth also indicate that they were primarily a fruit-eating species. On the other hand, their limb skeletons share monkey-like features. The evidence provided by a wide range of skeletal remains points toward considerable variation within the genus Proconsul, their body size extending from the size of a small monkey to a female gorilla. They also inhabited a variety of environments from rain forests to open woodlands.