What is New World monkey?
{{Taxobox | name = New World monkeys | image = Ateles fusciceps Colombia.JPG | image_width = 225px | image_caption = [[Black-headed spider monkey]] | regnum = [[Animal]]ia | classis = [[Mammal]]ia | ordo = [[Primate]]s | subordo = [[Haplorhini]] | infraordo = [[Simian|Simiiformes]] | parvordo = '''Platyrrhini''' | parvordo_authority = [[Étienne Geoffroy Saint-Hilaire|Geoffroy]], 1812 | superfamilia = '''Ceboidea''' | range_map = The range of new world monkeys.jpg | range_map_caption = Range of New World monkeys}} '''New World monkeys''' are the families of [[primate]]s which are found in [[Central America|Central]] and [[South America]]. The families are ranked together as the '''Ceboidea''' superfamily, the only living '''platyrrhine''' superfamily. They differ from the [[Old World monkey]]s and [[ape]]s, which are [[Catarrhini]]. * '''Platyrrhini''': the New World monkeys.<ref>Schneider, Horacio 2000. The current status of the New world monkey phylogeny. ''Anals de Academia Brasileira de Ciéncias'' '''72''', 2, [http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652000000200005&lng=en&nrm=iso&tlng=en]</ref><br/>Superfamily '''Ceboidea''' ** Family [[Cebidae]]: [[capuchin monkey|capuchins]] and [[squirrel monkey]]s. <br/>Subfamily Callitrichinae: [[marmoset]]s and [[tamarin]]s. <br/>Subfamily Aotinae: [[Night monkey|night]] or [[owl monkey]]s ** Family [[Pitheciidae]]: [[titi]]s, [[saki (monkey)|saki]]s and [[uakari]]s ** Family [[Atelidae]]: [[Howler monkey|howler]], [[Spider monkey|spider]], [[muriqui]] (woolly spider) and [[woolly monkey]]s ==Origin== About 40 million years ago, the [[simian]]s separated into the Platyrrhini (New World monkeys) and [[Catarrhini]] ([[ape]]s and [[Old World monkey]]s).<ref name=PQ>{{cite book | title = Primates in question | url = https://archive.org/details/primatesinquesti00shum | publisher = Smithsonian Institution Press | year = 2003 | author = Robert W. Shumaker & Benjamin B. Beck | isbn = 1-58834-176-3}}</ref> The key question is how did the early monkeys g