ANTH 110 Study Guide - Final Guide: Australopithecus Anamensis, Oligocene, Molecular Clock
Document Summary
Opposable toe, bipedal pelvis, no large canines, thin enamel on molars, big hands, long arms. In africa: erectus in georgia, erectus in indonesia, erectus. Age of earth: 4. 55 billion years ago. Paleocene to eocene: got really hot, brought extinction esp. marine life, petm, higher sea levels, first primates. Eocene to oligocene: drying, more grasslands, early catarrhines, monkeys. Miocene: himalayas formed, decreasing temps at the poles, lower sea levels, land ridges, golden age of apes, apes appeared. Pleistocene: ice age, habitat loss, interglacials, early homo developed. Holocene: linked to the end of the last ice age. Apidium: gave rise to nwm, owm, and apes. Proconsul: apes, teeth are ape-like, the dental ape, y5 molar pattern. Teeth can tell you about the species, sexual dimorphism, behavior, diet, etc. Early hominins: pre-australopiths (6-4. 4 mya), australopiths (4. 2-1. 2 mya), and early homo (2-1. 4 mya) Lca last common ancestor- either orrorin or afarensis (lucy) or tvchadensis.
