ANTH 101 Lecture Notes - Lecture 5: Sivapithecus, Catarrhini, Nacholapithecus
Document Summary
Prognathic face: projection of the face well in front of the braincase lacked nails and a postorbital bar: a bony ring encircling the eye. Diversification of mammals resulted in diversification of angiosperms, or flowering plants. Gaps in the fossil record are inevitable. So most fossils won"t be ever found. Angiosperms appeared and spread during the cretaceous. Animals disperse seeds from these flowers by producing sweet and colorful fruit. Environmental changes caused the extinction of dinosaurs and generate opportunities for mammals. K-t boundary: a time frame between the cretaceous period and the beginning of. Plesiadapiforms: a separate order of mammals or a suborder of the primates. They possessed a large diastema: gap between their anterior teeth. Purgatorius: teeth are less spiky than rodents of the cretaceous. Family of mostly eocene primates, slow moving arboreal quadrupeds that were active by day and eat fruit and leaves. Omomyids: family of mostly eocene primates (haplorhini ancestors)
