EVOLUTION UNDER WAY ~25 million years
Proconsul was an early genus of primates that existed from 23 to 17 million years ago during the Miocene epoch, first in Kenya, and restricted to Africa. Four species have been classified to date ranging in size from 22-84 lbs (10–40 kg). They inhabited rainforests.
They had a mixture of Old World monkey and ape characteristics, so their placement in the ape superfamily Hominoidea is tentative; some scientists place Proconsul outside of Hominoidea, before the split of the apes and Old World monkeys. If Proconsul is not an ape, then it would be somewhat closely related to Aegyptopithecus.
Proconsul's monkey-like features include thin tooth enamel, a light build with a narrow chest and short forelimbs, curved metacarpals, long flexible back, and an arboreal quadrupedal lifestyle. Its ape-like features are its lack of a tail, large lateral supracondylar ridge, and a slightly larger brain relative to body size. All of these features suggest that it was a "leaper" like most monkeys today as apposed to a vertical climber like modern apes. (click to see all the article on Wikipedia)