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ANTH 505 (2)
Lecture 2

Primate Evolution - Week 2

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Department
Anthropology
Course
ANTH 505
Professor
Susanne Cote
Semester
Fall

Description
7 Day of 09/12/13 Taxonomic Classification * see image of Primates Old world monkey (OWM) - cercopithecoids (cercopithecine and colombines) - monkeys in the old world (Africa, Asia and Europe) New world monkey (NWM) - Monkeys in the new world (Americas) Strepsirrhines - Lemurs, Lorisoids and Galagos Haplorhines - Tarsiers, OWM, NWM, Apes. Catarrhines - OWM and Apes Platyrrhines - NWM Anthropoids - NWM, OWM and Apes. Prosimii - Tarsiers, Lorises, Lemurs and Galagos. Cladistics Grouped based on share traits. Traits that are shared because of a common ancestor. Also known as phylogenetic systematics A phylogenetic tree as a notion of time and molecular data. The cladogram does not provide this information. Primitive traits (or plesiomorphy) Ancestral state. Traits are relative, they provide this information. Primitive traits (or plesiomorphy) Ancestral state. Traits are relative, they depend on which group you are talking about. Example of plesiomorphy for primates: Derived Traits (apomorphy)pendactily and fur/hair. A trait not present in the previous ancestral taxon. Example of apomorphy for humans: bipedalism. An apomorphy can be a loss or reversal. Symplesiomorphy Example: the loss of the tail. Shared primitive trait. Synapomorphy It is not helpful to build cladograms. Shared derived traits. Homoplasy
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