New World monkey
Incertae sedis New World monkeys are the five families of primates that are found in the tropical regions of Mexico, Central and South America: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae.[5] Platyrrhini are currently conjectured to have dispersed to South America on a raft of vegetation across the Atlantic Ocean during the Eocene epoch, possibly via several intermediate now submerged islands.[6][7] At the time the New World monkeys dispersed to South America, the Isthmus of Panama had not yet formed, so ocean currents, unlike today, favoured westward dispersal, the climate was quite different, and the width of the Atlantic Ocean was less than the present 2,800 km (1,700 mi) width by about a third (possibly 1,000 km (600 mi) less, based on the current estimate of the Atlantic mid-ocean ridge formation processes spreading rate of 25 millimetres per year (1 in/year)).[10] Possible evidence for a third transatlantic dispersal event comes from a fossil molar belonging to Ashaninkacebus simpsoni, which has strong affinities with stem anthropoid primates of South Asian origin, the Eosimiidae.This is in contrast with Old World Anthropoids, including gorillas, chimpanzees, bonobos, siamangs, gibbons, orangutans, and most humans, which share a dental formula of 2.1.2.32.1.2.3.
Early OligoceneHolocenePreꞒBrown spider monkeyScientific classificationEukaryotaAnimaliaChordataMammaliaPrimatesHaplorhiniSimiiformesÉ. GeoffroyType speciesCebus capucinusLinnaeusCallitrichidaeCebidaeAotidaePitheciidaeAtelidaeHomunculusMexicoCentralSouth Americaparvorderspider monkeyprehensile tailssimiansCatarrhiniOld World monkeysraft of vegetationEocenecaviomorphIsthmus of Panamaocean currentsmid-ocean ridge formation processesParapithecoideaLagonimicoCanaanimicoanthropoidEosimiidaetiti monkeywoolly monkeyBayesiancredible intervalList of platyrrhinesStrepsirrhinilemurslorisesgalagosHaplorrhinitarsiersmonkeysTarsiiformesmarmosetstamarinscapuchinssquirrel monkeysuakarishowlerspiderwoolly spiderwoolly monkeysPlatyrrhiniCallicebinaePitheciinaeAlouattinaeAtelinaeCebinaeSaimirinaeCallitrichinaeRemojadasAmparo MuseumNew Worldpygmy marmosetsouthern muriquihowler monkeystrichromaticX-chromosomedichromatichomozygousHeterozygouspremolarsdental formulagorillaschimpanzeesbonobossiamangsgibbonsorangutanshumansarborealmonogamouspair bondspaternal careopposablecebidsList of primates by populationGroves, C. P.Wilson, D. E.Strier KBScienceBibcodebioRxivMaureen NeitzSpiegel OnlineMarc van RoosmalenprimateEutheriaEuarchontogliresLorisoideaLorisidaeGalagidaeLemuroideaChiromyiformesDaubentoniidaeCheirogaleidaeLemuridaeLepilemuridaeIndriidaeTarsiidaeSimianCatharrhiniCercopithecidaeHominoidea