8.Austral - Hominids When and Where Did the First Hominids...

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Hominids When and Where Did the First Hominids Appear, and What Were They Like? What is the Relation Between the Various Forms of Australopithecus? Why Had Australopithecus Become a Bipedal Walker?
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Time line for hominid fossils A. anamensis 4.2-3.9 mya A. afarensis 3.9-3.0 mya A. africanus 3.0-2.3 mya A. boisei (Zinj) 2.0 mya A. robustus 1.8-1.0 mya Homo habilis 2.4-1.6 mya Black skull & 1470 - 630-775 cc brain Homo erectus 1.8 - 200,000 Homo neanderthalensis 300,000-35,000 Homo sapiens 50,000 - today
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Early primates Paleocene Eocene Oligocene Miocene Pliocene 55 65 34 23 5
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Ardipithecus ramidus Dated at 4.4 million years old, oldest collection of hominids discovered. More apelike than Australopithecus anamensis Hominid-like canine and vertebral elements Forward position of foramen magnum Suggesting bipedal locomotion on ground The remains provide anatomical evidence of bipedalism.
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Australopithecus Originally discovered in southern Africa Hundreds of fossils have now been found Existed between 4.2 and 1 million years ago Five different species: A. anamensis A. afarensis A. africanus A. boisei A. robustus
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Australopithecine sites Taung=1st 1924 Raymond Dart A. africanus Numerous fossils that date 3 to 2.3 mya
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Australopithecus anamensis 4.2 to 3.9 mya
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Time line for hominid fossils A. anamensis 4.2-3.9 mya A. afarensis 3.9-3.0 mya A. africanus 3.0-2.3 mya A. boisei (Zinj) 2.0 mya A. robustus 1.8-1.0 mya Homo habilis 2.4-1.6 mya Black skull & 1470 - 630-775 cc brain Homo erectus 1.8 - 200,000 Homo neanderthalensis 300,000-35,000 Homo sapiens 50,000 - today
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Australopithecus anamensis 4.2 to 3.9 million years ago Oldest direct evidence for bipedalism More apelike jaw
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Australopithecus afarensis 3.9-3.0 mya
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Time line for hominid fossils A. anamensis 4.2-3.9 mya A. afarensis 3.9-3.0 mya A. africanus 3.0-2.3 mya A. boisei (Zinj) 2.0 mya A. robustus 1.8-1.0 mya Homo habilis 2.4-1.6 mya Black skull & 1470 - 630-775 cc brain Homo erectus 1.8 - 200,000 Homo neanderthalensis 300,000-35,000 Homo sapiens 50,000 - today
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Lucy
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A. afarensis
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