ANTHROP 2FF3 Chapter Notes -Foramen Magnum, Sahelanthropus, Ardipithecus
16 Mar 2013
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Inclass learning assignment - 1 hour- chapters 7,8,9 - wednesday march 10th, 2010. Review the first two slides terms and also concepts. Traits for humans: bipedalism, changes in the an long bone lengths toward habitual and obligate bipeds, the most efficient locomotion for us (based on the change that occurred) Jaw muscles temple area has different muscle structure (apes = massive muscle on skull: crushing vs. on slicing up vegetation/plant foods, teeth= think enamel (seeds and nuts) vs thin enamel (seen in pogids- i. e. plants + fruits) Where are these found: ease africa and south africa, north- central africa- chad. Sahelanthropus tchadensis (7-6 mya: teeth show non-honing, central foramen magnum (bi-pedalism) Derived traits -not original, but stemming from adaptation or mutation. Still had the saggital crest, small brain case, massive brow ridges. Shows intermediate phase to modern hominids: orrin tugenensis (6 mya) found in kenya.
