Homo Erectus: a Bigger, Faster, Smarter, Longer Lasting Hominin Lineage
Homo erectus: A Bigger, Faster, Smarter, Longer Lasting Hominin Lineage Charles J. Vella, PhD August, 2019 Acknowledgements Many drawings by Kathryn Cruz-Uribe in Human Career, by R. Klein Many graphics from multiple journal articles (i.e. Nature, Science, PNAS) Ray Troll • Hominin evolution from 3.0 to 1.5 Ma. (Species) • Currently known species temporal ranges for Pa, Paranthropus aethiopicus; Pb, P. boisei; Pr, P. robustus; A afr, Australopithecus africanus; Ag, A. garhi; As, A. sediba; H sp., early Homo >2.1 million years ago (Ma); 1470 group and 1813 group representing a new interpretation of the traditionally recognized H. habilis and H. rudolfensis; and He, H. erectus. He (D) indicates H. erectus from Dmanisi. • (Behavior) Icons indicate from the bottom the • first appearance of stone tools (the Oldowan technology) at ~2.6 Ma, • the dispersal of Homo to Eurasia at ~1.85 Ma, • and the appearance of the Acheulean technology at ~1.76 Ma. • The number of contemporaneous hominin taxa during this period reflects different Susan C. Antón, Richard Potts, Leslie C. Aiello, 2014 strategies of adaptation to habitat variability. Origins of Homo: Summary of shifts in Homo Early Homo appears in the record by 2.3 Ma. By 2.0 Ma at least two facial morphs of early Homo (1813 group and 1470 group) representing two different adaptations are present. And possibly 3 others as well (Ledi-Geraru, Uraha-501, KNM-ER 62000) The 1813 group survives until at least 1.44 Ma. Early Homo erectus represents a third more derived morph and one that is of slightly larger brain and body size but somewhat smaller tooth size.
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