The Early Miocene origin for the genus Aotus is the longest of primates , with only Macaca traceable to the Late Miocene , approximately eight million years ago .
The evolutionary split in New World monkeys between Callitrichidae and Aotus has been estimated at 17.5 Ma .
The Early Miocene origin for the genus Aotus is the Aotus of primates , with only Macaca traceable to the Late Miocene , approximately eight million years ago .
The evolutionary split in New World monkeys between Callitrichidae and Aotus has been estimated at 17.5 Ma .