Which primates do catarrhines include?
FEEDBACK: The infraorder Catarrhini includes the apes and Old World monkeys.
What are the two major groups of catarrhines?
The parvorder Catarrhini /kætəˈraɪnaɪ/, catarrhine monkeys, Old World anthropoids, or Old World monkeys, consisting of the Cercopithecoidea and apes (Hominoidea). In 1812, Geoffroy grouped those two groups together and established the name Catarrhini, "Old World monkeys", ("singes de l'Ancien Monde" in French).
What is the dental formula for catarrhines?
2.1.2.3Catarrhines only possess two premolars, in contrast to the three premolars of New World monkeys. This leads to a dental formula of 2.1.2.3 (Fig.
What is the difference between catarrhines and platyrrhines?
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. There are certain physical features that help set primates apart from other animals.
Who are we most closely related to are we catarrhines?
Accordingly, besides great apes (chimpanzees, gorillas, orangutans) and small apes (gibbons), Old World monkeys are our closest living relatives. According to fossil remains and genetic data, both superfamilies diverged ca. 32 million years ago (Ma) [32,35–37].
Do catarrhines have Y 5 molars?
In contrast, all of the catarrhines have 2 premolars and 3 molars, making a dental formula of 2.1.2.3.
Do catarrhines have ear tubes?
Firstly, NWMs have broad, flat nostrils, while catarrhines have narrow, downward pointing nostrils (Figure 1). Secondly, NWMs have three premolar teeth, while catarrhines have two. Thirdly, NWMs lack a bony ear tube (ectotympanic tube), which is present in catarrhines.
What are the key differences between Parvoorders catarrhines and platyrrhines?
Platyrrhines refer to the parvorder Platyrrhini, consisting of flat-nosed simians, having more flatter noses than those other simians, with sideways-facing nostrils, while catarrhines refer to the second parvorder, parvorder Catarrhini, consisting of simians with hooked noses with nostrils facing downward.
Which of the following primate groups belong to Strepsirrhines?
SuborderInfraorderCommon NamesStrepsirrhini (strepsirrhines: primates with moist noses.) (also known as prosimians)Lemuriformes (lemurs)dwarf and mouse lemursindris, avahis, and sifakasaye-ayesLorisiformes (lorises)lorises, pottos, and angwantibos16 more rows
Where are Platyrrhines found?
Platyrrhines, or New World Monkeys (NWM), are a diverse group of primates currently distributed in the Neotropical region from Mexico to Northern Argentina but excluding the Caribbean islands. They are all arboreal, but exhibit a wide spectrum of locomotor postures as well as body sizes (Fleagle 2013).
What animal is the closest living relative of a human?
chimpanzeesEver since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives.
In what way does the skull of a Haplorhines differ from that of an Strepsirrhine?
Strepsirhines have longer snouts, smaller brains and a more highly developed sense of smell than haplorhines. Haplorhines have shorter faces, larger brains and a more highly developed sense of vision than Strepsirhines; their eyes face more forward than the eyes of strepsirhines.