ANTH 2700 Chapter Notes - Chapter 7: Old World Monkey, New World Monkey, Premolar
Document Summary
Comparing the living primates [lab manual and workbook for. Most living primates have at least somewhat procumbent (forward-projecting) incisors. Lemurs and lorises (strepsirhini) have the tooth comb to groom their fur and take gum off trees for eating. Reduction in sense of smeel and snout in trends of primates. Size f dentition dictates size and shape of dental arcade and snout. Modern pongids and some monkeys have a sectorial lower first premolar (p3) that forms a cutting, slicing complex. Trend in hominin evolution is molarizing of premolars; premolars widen for grinding surface. Bilophondont (4 cusps) and y-5 molar (5 cusps) Change from rectangular shape in gorillas to parabolic shape in modern humans. Pottos of africa and lorises of south asia. Push off with hind limbs from a vertical or near-vertical support. Old world monkeys that are terrestrial walk more; ground-living behavior. Some new world monkeys use tails as fifth hand or to hang from branches.
