Readers ask: What Is A Platyrrhine Nose?

having a broad, flat-bridged nose. belonging or pertaining to the subdivision of simians that comprises New World monkeys, characterized by noses flatter than those of other simians and with widely separated, side-facing nostrils.

What primates have a platyrrhine nose?

New World monkeys are the platyrrhines (“flat-nosed”), a group comprising five families. As their taxonomic names suggest, New World (platyrrhine) and Old World (catarrhine) monkeys are distinguished by the form of the nose.

What makes a platyrrhine?

Of or belonging to the primate infraorder Platyrrhini, characterized by widely separated nostrils that generally open to the side, and including the New World monkeys such as the spider monkeys, marmosets, and titis. 2. Having a broad flat nose. A platyrrhine monkey.

Which of the following is an example of a platyrrhine?

Platyrrhines include marmosets, tamarins, capuchins, squirrel monkeys, owl monkeys, titis, sakis, uakaris, woolly monkeys, etc. They are small to mid-sized primates.

Is a human a platyrrhine or a Catarrhine?

Catarrhines include gibbons, orangutans, gorillas, chimpanzees, and humans.

Is a spider monkey a Platyrrhine?

The five families are ranked together as the Ceboidea /sɛˈbɔɪdiːə/, the only extant superfamily in the parvorder Platyrrhini /plætɪˈraɪnaɪ/. Monkeys in the family Atelidae, such as the spider monkey, are the only primates to have prehensile tails.

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Do hominoids have Y 5 molars?

Within this grouping, the two families Hylobatidae and Hominidae can be distinguished from Old World monkeys by the number of cusps on their molars; hominoids have five in the “Y-5” molar pattern, whereas Old World monkeys have only four in a bilophodont pattern.

Where do the Platyrrhini come from?

They inhabit a wide range of forest habitats, from Mexico to Argentina. 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 (Perelman et al.

Where are Platyrrhine are found in?

Platyrrhines are a diverse group of primates that presently occupy a broad range of tropical-equatorial environments in the Americas. However, most of the fossil platyrrhine species of the early Miocene have been found at middle and high latitudes.

Where are Cebidae found?

The Cebidae are one of the five families of New World monkeys now recognised. Extant members are the capuchin and squirrel monkeys. These species are found throughout tropical and subtropical South and Central America.

Is a squirrel monkey a Platyrrhine?

Saimiri sciureus, the squirrel monkey is a South American or New World monkey. South American monkeys or platyrrhines comprise one of the two infraorders (Platyrrhini and Catarrhini) of anthropoid primates.

Are Siamangs Old World monkeys?

Siamangs are a type of gibbon, which is an ape. While Old World Monkeys and apes share commonalities, siamangs are not Old World Monkeys, and they are

Is a squirrel monkey a New World monkey?

But squirrel monkeys are also one of the most intelligent primates, and they have the largest brain-to-body ratio. Squirrel monkeys are New World monkeys. This does not necessarily mean that they are more hip, stylish or well informed than Old World monkeys, but rather that they evolved in a different way.

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What do catarrhines nostrils look like?

Catarrhines and platyrrhines are distinguished by the shape of their nostrils. Catarrhines have narrow downward facing nostrils, while platyrrhines have broad, flat, sideways facing nostrils.

Is a lemur a Catarrhine?

Lemurs, for example, lack the functional duality of the hands of most apes and Old World monkeys (catarrhines). Duality in hand function has been described in terms of precision and power…

Is a baboon a Catarrhine?

Baboons are the biggest of the old world monkeys, especially the males. The Catarrhine family includes more folivores. They share their habitats with prosimians and apes, so there’re a lot of niches lying around which aren’t filled by the old world monkeys since some other primate filled it first.

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