ANTC99H3 Chapter Notes -Gelada, Paracolobus, Ulnar Nerve
Document Summary
Bilophodont (2 crests that link crests together used for cutting) Apes teeth are more primitive (retained the crest crista oblique) Pronounced medial keel to the trochlea (no lateral keel) stabilizes. Spool-shaped trochlea (both medial and lateral keels) joint for support. Long legs, short thumbs and long tail (not prehensile) Colobines were thought to be more primitive than cercopithecines (similar to gibbons, all owm have bilophodont (folivorous) however this is incorrect proven by the victoriapithecus. Cercopithecoidea hominoidea catarrhini (2 premolars) platyrrhini anthropoidea (new world monkeys 3 premolars) (old world monkeys) (apes and humans) stem platyrrhines stem catarrhines stem anthropoids. Presence of a tubular ectotympanic shows that it is closer to catarrhines. The common ancestor of apes and old world monkeys. Distal humerus: big medial keel with no lateral keel. Short, bulbous cusps distal end of the humerus with temporal lines not found in modern owm it posteriorly directed medial is a primate trait) epicondyle.