ANT 001

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Author:
trainingliz89
ID:
120528
Filename:
ANT 001
Updated:
2011-12-03 20:16:24
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Late Hominins
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Lecture 17
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  1. Homo heidelbergensis (600-1000kya)
    • traits shared w/Homo erectus:
    • 1. occipital torus
    • 2. supraorbital torus
    • 3. receding frontal

    found in Africa, Asia, and Europe
  2. Homo floresiensis
    • might have evolved from H. erectus
    • 18-13,000kya
    • "insular dwarfing"
  3. Discovery of Neandertal
    • in 1856 German worker discovered skull cap
    • they occupied from 150-35kya
    • distinctly known for:
    • -mid facial prognathism
    • -robust body
    • -occipital bun
    • -retromolar gap
  4. Primate Origins
    • Paleocene (65mya)
    • -plesiadapids "primate like" bot not
    • Eocene (54mya)
    • -early prosimians
    • -adapids
    • -omomyids
    • Oligocene (34mya)
    • early anthropoid
    • -new world monkey?
    • -aegyptopithecus
    • Miocene (23mya)
    • -early hominoid
    • -oreopithecus
    • -gigantopithecus
    • -sivipithecus
    • -proconsul (moneky or ape?)
  5. Early Hominins (6.2mya)
    • Ardipithecus ramidus
    • Australopithecus afarensis
    • Australopithecus africanus

    • - bipedal on the ground but retained arboreal adaptations
    • - jaws and teeth were intermediate between chimp and human
    • - brain size similar to apes
  6. Hominins w/unique adaptations 3.1mya
    • A.aethiopithecus
    • P. boisei
    • P. robustus

    • - bipedal on the ground but still retained arboreal adaptations
    • - had large cheek teeth and skulls for heavy chewing
  7. First members of Homo (2.4-0.6mya)
    • Homo habilis/rudolfensis
    • - similar to Australopiths, but with smaller cheek teeth and smaller brains

    • Homo ergaster/erectus
    • - human like efficient bipedalism
    • - lower sexual dimorphism
    • - new chewing adaptation
  8. Later members of Homo
    • Homo heidelbergensis (600-1000kya)
    • - similar to H. erectus, but with larger brain
    • - found in Africa, Asia, Europe

    • Homo floresiensis (18-13kya)
    • - tiny hominins found from Indonesia
    • - possibly evolved from H. erectus

    • Homo neandertalensis (45-30kya)
    • - found in Europe and W. Asia
    • - several unique traits (mid-facial prognathism. occipital bun. retromolar gap) very robust
  9. Anatomically modern H. sapien (100-200kya)
    • - vertical foreheads, flat faces tucked under their brains, and chins
    • - populate the earth
  10. Trends in hominin evolution
    • - smaller and flatter faces
    • - rounder and larger brain cases
    • - less robusticity
    • - smaller teeth
    • - taller, longer limbs
    • - less sexual dimorphism

    • - reduced prognathism
    • - brain expansion
    • - higher cranial vault
    • - more rounded skull
    • - less receding chin
    • - mere flexed skull base

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