18.txt

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Anonymous
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271251
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18.txt
Updated:
2014-04-20 18:29:55
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18 susansugardaddy
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18
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  1. Australopith's teeth?
    Thick enamel for nut cracking
  2. How can you tell what a specimen ate?
    • Stable Isotope studies of dental enamel
    • E. Lloyd Du Brul studied?
    • teeth
  3. Homo habilis characteristics?
    • 2.0-1.6Ma 
    • Handy Man 
    • Tool association 
    • Passes cerebral rubicon
  4. Kenyanthropus platyops characteristics?
    • flat-faced man of Kenya
    • 3.2 to 3.5 Ma
    • West Lake Turkana
    • contemporary with Lucy KNM-WT 40000 = holotype
  5. Homo habilis characteristics relative to Australopiths?
    • unreduced incisors & canines
    • small (narrow) molars
    • no sagittal crests
    • slight postorbital constriction
    • derived palatal shape
  6. Defining Homo habilis Postcranial Remains?
    • robust hand bones
    • adducted big toe
    • stiff midfoot
    • forelimbs indicate climbing
  7. Oldowan Chopper Technology ?
    • Hammerstones, cores and flakes
    • First appearances
    • East Africa South Africa Mideast, Asia Europe
    • 2.5 Ma 2.0 Ma 1.8 Ma 0.8 Ma
  8. Single Species Hypothesis?
    • C. Loring Brace & Milford Wolpoff (University of Michigan)
    • 1968 and multiple incarnations since
    • Differences between hominin species reflect Intraspecific variation Only one species of hominin can exist at any one time.
  9. Specimen that ruined the Single Species Hypothesis?
    • New data that
    • KNM-ER 1470 (found 1973)
    • H. rudolfensis
    • Large flat face
    • Big brain
    • Big molars
    • 1.9Ma
  10. Lumpers?
    sexual dimorphism within-species variation keeps SSH intact
  11. Splitters?
    between-species variation species diversification adaptive radiation in Homo

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