haplorhini การใช้

• Since then, primate taxonomy has shifted between Strepsirrhini-Haplorhini and Prosimii-Anthropoidea multiple times.
• Even the placement of Tarsiiformes within suborder Haplorhini ( with the monkeys and apes " ) is still debated.
• Suborder Haplorhini, the simple-nosed or " dry-nosed " primates, is composed of two sister clades.
• Philip D . Gingerich states that the seven Prosimii as an alternative to Haplorhini and Strepsirrhini, depending on the position of Adapoidea and Tarsioidea.
• However, since then the tarsiers have been placed in with the Haplorhini, and thus the absence of a rhinarium became diagnostic of the Haplorhini.
• However, since then the tarsiers have been placed in with the Haplorhini, and thus the absence of a rhinarium became diagnostic of the Haplorhini.
• The cladogram to the right represents the current universally accepted hypothesis that all primates, including Strepsirhini and Haplorhini, where the latter contains Tarsiiformes and Anthropoidea.
• He shows the Adapoidea together with the Tarsioidea as representing early diversification of the suborder Haplorhini and shows the Strepsirrhini as having branched off directly from the earliest primates.
• Primates are phylogenetically divided into Strepsirrhini, species that possess a curly  wet nose rhinarium, and Haplorhini, those that possess a dry  simple nose structure.
• The other major clade within Haplorhini, the simians ( or anthropoids ), is divided into two parvorders : Platyrrhini ( the New World monkeys ) and Catarrhini ( the Old World monkeys and apes ).
• This taxonomy went unnoticed until 1918, when Pocock compared the structure of the nose and reinstated the use of the suborder Strepsirrhini, while also moving the tarsiers and the simians into a new suborder, Haplorhini.
• Loss of GULO activity in the primate order occurred about 63 million years ago, at about the time it split into the suborders Haplorhini ( which lost the enzyme activity ) and Strepsirrhini ( which retained it ).
• More recently, taxonomists have preferred to split primates into the suborder Strepsirrhini, or wet-nosed primates, consisting of non-tarsier prosimians, and the suborder Haplorhini, or dry-nosed primates, consisting of tarsiers and the simians.
• When assumed to be a clade, they are usually grouped under the " wet-nosed " taxon Strepsirrhini, which would make them more closely related to the lemurs and less so to the " dry-nosed " Haplorhini taxon that includes monkeys and apes.
• Before Anderson and Jones introduced the classification of Strepsirrhini and Haplorhini in 1984, ( followed by McKenna and Bell's 1997 work " Classification of Mammals : Above the species level " ), the Primates were divided into two superfamilies : Prosimii and Anthropoidea.
• For example, the lack of an obvious rhinarium in " Tarsiiformes " has been suggested to be the consequence of the enormous development of the eyeballs, rather than a loss of relevance of olfaction ., but the significance is currently debatable, because there currently is an influential body of opinion favouring inclusion of the tarsiers in the Haplorhini rather than in the Strepsirrhini as had been traditional.