Table of Contents
What are the two suborder of primates?
The two suborders recognized today are Strepsirrhini (lemurs and lorises) and Haplorrhini (tarsiers, monkeys, and apes, including humans).
What are the names of the primate groups within the suborder Strepsirrhini?
| Suborder | Infraorder | Common Names |
|---|---|---|
| Strepsirrhini (strepsirrhines: primates with moist noses.) (also known as prosimians) | Lemuriformes (lemurs) | dwarf and mouse lemurs |
| indris, avahis, and sifakas | ||
| aye-ayes | ||
| Lorisiformes (lorises) | lorises, pottos, and angwantibos |
What is a defining trait of Strepsirrhini?
More specific Strepsirrhine primates’ characteristics: – Dental comb. – Grooming Claw on second toe of foot. – Scent mark as a way of defining territories; however, Not the only primates to do so. – Large eyes, No postorbital closure.
Where are Strepsirrhini found?
Madagascar
GEOGRAPHICAL LINEAGES OF STREPSIRHINES Lemurs and the aye aye (infraorder Lemuriformes) live exclusively on Madagascar, an Island off the East Coast of Africa. Galagos and lorises (infraorder Lorisiformes) are more widespread being found on mainland Africa and Asia.
What is the suborder for humans?
Haplorhini
Human taxonomy
| Homo (“humans”) Temporal range: Piacenzian-Present, | |
|---|---|
| Scientific classification | |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
Which of the following is a primitive characteristic of the primate suborder Strepsirrhini?
All strepsirrhines have a tapetum lucidum, a reflective layer at the back of the eye that reflects light and thereby enhances the ability to see in low-light conditions. This trait is thought to be primitive among mammals as a whole.
Who are the members of the suborder Haplorhini?
Haplorhini (the haplorhines or the “dry-nosed” primates, the Greek name means “simple-nosed”) is a suborder of primates containing the tarsiers and the simians (Simiiformes or anthropoids), as sister of the Strepsirrhini. The name is sometimes spelled Haplorrhini.
What are the defining characteristics for the two major primate suborder Strepsirrhini and Haplorhini?
Strepsirrhini is a suborder containing lower primates including the lemuriform primates. The main characteristic feature of them is the presence of a moist nose. On the other hand, Haplorhini is the second suborder, containing higher primates including New World monkeys, Old World monkeys, and apes.
Which of the following are characteristics of the primate suborder Strepsirhini?
Strepsirhini, which means “twist-nose,” characteristics include:
- snout-like nose.
- wet rhinarium (naked, moist area of skin on the snout–think dog nose)
- heightened sense of smell.
- prominent whiskers.
- divided upper lip tied to the gums by a membrane.
- wooly fur.
- grooming claw.
- dental combs (tooth comb)
What does the suborder Haplorhini include?
Which of the following primates are included in the anthropoid suborder?
Monkeys, apes, and humans. Includes lemurs, lorises, and tarsiers. Prosmians are the older of the two suborders, Anthropods took over prosmian niches – Tarsiers and lorises survived by adapting to be nocturnal. Why don’t prosimians directly compete with anthropoids?
Which derived trait is unique to the suborder strepsirrhines?
What does the suborder Strepsirhini include?
The lower primates or strepsirhines (suborder Strepsirhini) include lemurs, bush babies, lorises; the higher primates or haplorhines (suborder Haplorhini) include the tarsiers, Old and New World monkeys, apes and humans.
What are the Infraorders of Haplorhini?
Modern haplorhines are divided into three infraorders: the Platyrrhini, the New World Monkeys; the Catarrhini, the Old World Monkeys, apes and humans; the Tarsiiformes, the tarsiers. The two geographically separated lineages of monkeys are distinguished principally by the shape of the nose.
What is the difference between the suborder Strepsirrhini and Haplorhini?
The main difference between Strepsirrhini and Haplorhini is that Strepsirrhini contains lower primates, mainly lemuriform primates, whereas Haplorhini contains higher primates including New World monkeys, Old World monkeys, and apes.
What type of primates would be classified under the Haplorhini suborder?
Haplorhini (/hæpləˈraɪnaɪ/), the haplorhines (Greek for “simple-nosed”) or the “dry-nosed” primates, is a suborder of primates containing the tarsiers and the simians (Simiiformes or anthropoids), as sister of the Strepsirrhini (“moist-nosed”). The name is sometimes spelled Haplorrhini.