The most prominent phenotypic distinction is the nose, which is the feature used most commonly to distinguish between the two groups. The clade for New World monkeys, Platyrrhini, means "flat nosed". The noses of New World monkeys are flatter than the narrow noses of Old World monkeys, and have side-facing nostrils.

Platyrrhini is a parvorder of primates. Members of this parvorder are called platyrrhines, or New World monkeys, and include marmosets, tamarins, and capuchin, squirrel, night, titi, saki, howler, spider, and woolly monkeys. Platyrrhini is one of three clades that …

2019年11月22日 · The main difference between platyrrhines and catarrhines is that platyrrhines are a parvorder of simians that contains flat-nosed primates, including New World monkeys, whereas catarrhines are a parvorder of simians that contains hooked-nose primates including Old World monkeys, apes, and humans.

The scientific name for New world monkey, Platyrrhini, means ‘flat nosed’, therefore their noses are flatter, with side facing nostrils, compared to the narrow noses of the Old World monkey. Most New world monkeys have long, often prehensile tails.

The formal term for the taxonomic group containing all the New World Monkeys (NWMs) is Platyrrhini. The NWMs diverged from the Old World monkeys and apes (Catarrhini) around 40 million years ago...

2025年3月20日 · Platyrrhini, or New World monkeys, belong to the infraorder of primates that diverged from their Old World relatives around 40 million years ago. This split led to distinct morphological and genetic differences, shaping their classification within the order Primates.

A New World monkey is any member of the primate clade Platyrrhini, comprised of four Central and South America families: Cebidae (marmosets, capuchins, squirrel monkeys, tamarins), Aotidae (night or owl monkeys), Pitheciidae (titis, sakis, uakaris), and Atelidae (howler, spider, and woolly monkeys).

Platyrrhini are small to medium size monkeys with flat noses, which distinguishes them from Old World monkeys. Other than howler monkeys, they lack the typical trichromatic vision of the Old World monkeys.

Platyrrhines live in South and Central America, are all primarily arboreal, and show great diversity in social structures. Platyrrhini include: marmosets, tamarins, squirrel monkeys, capuchins, owl monkeys, titi monkeys, howler monkeys, spider monkeys, …

Platyrrhini the New World monkeys, distinguished from those of the Old World by their possession of a broad cartilaginous nasal septum and a long, usually prehensile, tail. Compare CATARRHINI.