ANT 1 Lecture Notes - Lecture 9: Old World Monkey, Incisor, Hylobates
Document Summary
Lecture 9: primate taxonomy (part 2: quick review this is the taxonomy of the primates that we will use, remember the two different taxonomic possibilities for the suborder level: Suborder anthropoidea (monkeys, apes, and people: order: primates, key primate traits: Pentadactyly (five digits on hands and feet: opposable thumbs and big toes, nails instead of claws on at least some digits, clavicle (collarbone) Suborder: prosimians (prosimii: lemurs found in madagascar. For nocturnal vision, to catch the most light into the eye. Post orbital bone only (derived for primates vs other mammals, but ancestral among the primates: most have 3 premolars (ancestral) Suborder: antropoids (antropoeidea) monkeys and apes: key anthropoid traits: Complete closure of the orbit (post-orbital-plate) (derived: fully fused mandible (derived) because of having a flatter face and nose. Increased brain and body size in general (derived: anthropoids. Locomotion: arboreal quadrupeds (walks on all fours on tops of tree branches)
