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?Simians
Hylobates lar
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorrhini
Infraorder: Simiiformes
Haeckel, 1866
Families

Cebidae
Aotidae
Pitheciidae
Atelidae
Cercopithecidae
Hylobatidae
Hominidae

The simians (infraorder Simiiformes) are the "higher primates" very common to most people: the monkeys and the apes, including humans. Simians tend to be larger than the "lower primates" or prosimians.

Classification and evolutionEdit

The simians are split into three groups. The first division is literally as wide as the Atlantic Ocean. The New World monkeys in Platyrrhini parvorder split from the simian line about 40 million years ago (mya), leaving the Catarrhini parvorder occupying the Old World. This group split about 25 mya between the Old World monkeys and the apes. Earlier classifications split the primates into two large groups: the "Prosimii" (strepsirrhines and tarsiers) and the simians in "Anthropoidea"(an'thro-poy'de-a)(Gr. anthropos, man).

See alsoEdit

ReferencesEdit

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