ANTHROP 3300 Lecture Notes - Lecture 7: Postorbital Bar, Zygomatic Arch, Petrous Part Of The Temporal Bone

• School: Ohio State University
• Department: Anthropology
• Course: ANTHROP 3300
• Professor: Guatelli- Steinberg Debbie

Document Summary

Lecture: september 15, september 20 & september 22. Body/canine size has to do with mating system. Gorillas (most) 1 male and many females. Ratio: length of forelimb to length of hindlimb x 100. Brachiating = >100: body size and diet. Insectivores primarily frugivorous primarily folivorous (small. Needs more energy per gram body weight, but less total energy: teeth and diet. Fruit = broad incisors; low, rounded molars (for crushing) Hard foods and low bulbous cusps and thick enamel = strong. Leaves and high cusps with shearing crests and thin enamel. = wears away and becomes very sharp: cranium and diet. F. 2. tall ascending ramus = allows for more power and efficiency. Paleocene (65 mya: adaptive radiation of mammals. Anthro 3300: related to order scandentia and order dermoptera, geography eurasia and north america connected, climate warm; humid, mammals. Some with petrosal bulla, no post-orbital bar, claws, snouty, most have reduced number of premolars and low, rounded molar cusps.