Fossil evidence of Human Evolution 17. pp.324-326 Earliest Evidence of Human Ancestors Central Africa about 3 million years ago Not a human but Walked upright About 4 feet tall Brain smaller than human Most famous is “Lucy” Australopithecus afarensis Brain about 475 cm3 Human about 1400 cm3
Fossil evidence of Human Evolution 17. pp.324-326 Other Fossils give a picture of human evolution Australopithecines = species in the genus Australopithecus A. africanus: 2-3 mya, brain 430-550 cm3 A. robustus: 1-2.6 mya, brain 450-600 cm3 A. boisei: 1-2.6 mya, brain 450-600 cm3 Australopithecines probably not direct ancestors of humans
Fossil evidence of Human Evolution 17. pp.324-326 Genus Homo: Homo habilis: “handy human” Homo erectus: “ upright human” Homo sapiens: “thinking human”
Fossil evidence of Human Evolution 17. pp.324-326