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    Evolution of primates - Wikipedia

    • Human evolution is the evolutionary process that led to the emergence of anatomically modern humans, beginning with the evolutionary history of primates – in particular genus Homo – and leading to the emergence of Homo sapiens as a distinct species of the hominid family, the great apes. See more

    Overview

    The evolutionary history of the primates can be traced back 57-90 million years. One of the oldest known primate-like mammal … See more

    Origins

    The origins and early evolution of primates is shrouded in mystery due to lack of fossil evidence. They are believed to have split from plesiadapiforms in Eurasia around the early Eocene or earlier. The first true primates s… See more

    Evolution of strepsirrhines

    The earliest strepsirrhines are known as adapiforms, a diverse group that ranged throughout Eurasia and North America. An early branch of this clade gave rise to lemuriform primates, which includes lemurs and their kin. … See more

    Evolution of haplorrhines

    The earliest haplorrhine primates from the fossil record are the omomyids, which resembled modern day tarsiers. Like the strepsirrhine adapiforms, omomyids were diverse and ranged throughout Eurasia and North Amer… See more

    Evolution of color vision

    Some of the primates' vertebrate ancestors were tetrachromats, but their nocturnal mammalian ancestors lost two of their four cones during the mesozoic. Most modern primates, however, have evolved to be trichromats. … See more

    Evolution of New World monkeys

    Following the emergence of Simiformes in Africa, Platyrrhini split from Catarrhini during the Eocene when New World monkeys dispersed to South America, likely by rafting on mats of vegetation across the Atlantic Ocean. Th… See more

    Evolution of Old World monkeys

    The earliest known catarrhine is Kamoyapithecus from uppermost Oligocene at Eragaleit in the northern Kenya Rift Valley, dated to 24 million years ago. Its ancestry is thought to be species related to Aegyptopit… See more

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    Table of Contents
    Overview
    Origins
    Evolution of strepsirrhines
    Evolution of haplorrhines
    Evolution of color vision
    Evolution of New World monkeys
    Evolution of Old World monkeys
     
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