19.txt

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Author:
uf2014
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271254
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19.txt
Updated:
2014-04-20 18:42:20
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19
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  1. Homo habilis Homo ergaster Homo rudolfensis Homo erectus characteristics?
    • E & S Africa E Africa
    • E Africa
    • Old World
    • 2.4 1.8 Ma 1.8 1.0 Ma 2.4 1.8 Ma 1.8 0.05 Ma
  2. Who is Homo ergaster?
    • Proposed in 1975 (Groves & Maza?k)
    • Diagnosed by molar size and reduction in premolar root number
    • As Homo erectus got messy, H. ergaster served to tidy up.
  3. Homo ergaster?
    • Too big for H. habilis
    • Too derived for H. rudolfensis Too generalized for H. erectus
    • Thin skull bones
    • Thick skull bones
  4. Nariokotome?
    • 1.5 Ma
    • Age at death: 8-11 yrs old
  5. Who is Homo erectus?
    • African from 1.8 Ma
    • First hominin to out of Africa
    • Arrives in Asia ca. 1.8 Ma (?)
    • tropical and temperate climates
  6. Java Sites ?
    • DuBois worked 1890-1900
    • sites: Trinil (Solo River)
    • brain case, mandible, limb bones
    • 0.9Ma
    • Von Koenigswald worked 1936-1941
    • sites: Modjokerto & Sangiran
    • Several new species, now all H. erectus
    • 1.71.0Ma
  7. Java Sites ?
    • Ngangdong
    • Excavated 1930s
    • 30,000 50,000 years old (recent redating 173,000- 500,000 BP)
  8. Pithecanthropus erectus: Dubois 1894 ?
    • Haeckels (1865) Pithecanthropus alalus Java (Indonesia)
    • 1.8-.05Ma
  9. Zhoukoudian ?
    • Sinanthropus pekinensis
    • China
    • Davidson Black & Franz Weidenreich
    • 1920s & 30s -- material lost during WWII
    • Zhoukoudian ca. 0.7 - 0. 4 Ma
    • other sites ca. 1 Ma
    • Sunk into Homo erectus
  10. Zhoukoudian Main Cave artifacts ?
    • Oldowan Chopper Acheulian Biface or Handaxe
    • Pithecanthropus Meganthropus
    • Sinanthropus
  11. Dmanisi?
    • Brain size ~ 750 cc
    • Small body size 1.7MA
    • ergaster - like
  12. What is Homo erectus up to?
    • Brain size is increasing
    • They are getting big
    • They are expanding into new (colder) habitats
  13. Fire?
    • Obvious selective benefit
    • Capture preceded starting
    • Earliest good evidence 1 Ma (South Africa, H. ergaster)
  14. Expensive Tissue Hypothesis?
    • Better Tools
    • More Complex Foraging
    • Enables:
    • Larger Brain
    • Higher Quality Diet
    • More Energy For
    • Smaller Guts
    • Less Time Digesting

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