biology

List of platyrrhines

List of platyrrhines is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of platyrrhines rather than just read about it. In short: 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.

Key takeaways

List of platyrrhines belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of platyrrhines to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of platyrrhines from memory before moving on to harder problems.

Reference excerpt

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 form the suborder Haplorrhini, itself one of two suborders in the order Primates. They are found in forests and savannas from South America to Mexico. They range in size from the western pygmy marmoset, at 12 cm (5 in) plus a 17 cm (7 in) tail, to some species of howler monkey in the genus Alouatta, at 92 cm (36 in) plus a 92 cm (36 in) tail. Platyrrhines primarily eat fruit, leaves, and insects. Most platyrrhines lack population estimates, but those that do range from 250 mature individuals to 10,000. Twenty-one species are categorized as endangered, and a further fourteen species are categorized as critically endangered. The 163 extant species of Platyrrhini are divided into five families. Aotidae contains eleven night monkey species in a single genus. Atelidae contains twenty-three species divided between one genus in the howler monkey subfamily Alouattinae and three genera in the spider monkey and woolly monkey subfamily Atelinae. Callitrichidae contains 53 species of tamarins and marmosets in seven genera. Cebidae contains eighteen species divided between two genera in the capuchin subfamily Cebinae and one genus in the squirrel monkey subfamily Saimiriinae. Pitheciidae contains 57 species divided between three genera in the titi monkey subfamily Callicebinae and three genera in the uakari and saki monkey subfamily Pitheciinae. Dozens of extinct prehistoric platyrrhine species have been discovered, though ongoing research means the exact number and categorization remain uncertain.

Conventions

The author citation for the species or genus is given after the scientific name; parentheses around the author citation indicate that this was not the original taxonomic placement. Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the platyrrhine's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted.

Classification The parvorder Platyrrhini consists of five extant families: Aotidae, Atelidae, Callitrichidae, Cebidae, and Pitheciidae. Aotidae contains 11 species in a single genus. Atelidae is divided into two subfamilies: Alouattinae, containing twelve species in one genus, and Atelinae, containing eleven species in three genera. Callitrichidae contains 53 species in seven genera. Cebidae is divided into two subfamilies: Cebinae, containing eleven species in two genera, and Saimiriinae, containing one genus of seven species. Pitheciidae is divided into two subfamilies: Callicebinae, containing 32 species in three genera, and Pitheciinae, containing 25 species in three genera.

Platyrrhines The following classification is based on the taxonomy described by the reference work Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists.

Family Aotidae

Family Atelidae

Subfamily Alouattinae

Subfamily Atelinae

Family Callitrichidae

Family Cebidae

Subfamily Cebinae

Subfamily Saimiriinae

Family Pitheciidae

Subfamily Callicebinae

Subfamily Pitheciinae

References

Sources

Illustrations

Worked examples

Example 1 — a first encounter with List of platyrrhines

Start with the simplest possible case. Write down what List of platyrrhines claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of platyrrhines before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of platyrrhines ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of platyrrhines

In research: List of platyrrhines appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of platyrrhines in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of platyrrhines is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lists of animal species, Lists of primates, New World monkeys, so understanding it makes those chapters shorter.
In everyday life: Look for List of platyrrhines outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of platyrrhines in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of platyrrhines means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of platyrrhines out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of platyrrhines in simple terms?

Why does List of platyrrhines matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of platyrrhines?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of platyrrhines.