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26 Cards in this Set
- Front
- Back
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Piltdown Hoax |
-England -modern human cranium with a orang-utan mandible |
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Taung Baby |
Foranum magnum closer to face( Raymond Dart 1925 |
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lumpers |
deemphasize variation less speciose |
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splitters |
more speciose |
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variability selection hypothesis |
its better to be generalized rather than specialized |
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SOAAP |
PROTOHOMININS sahelanthropus tchadnesis orrorin tugenisis THE UNDISPUTED HOMININS ardipithicus australopithecines paranthropus |
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facultative bipedalism |
is able to walk on two legs as well as four.( not fully reliant on bipedalism |
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Gracile |
small or slightly built refers to species lacking skeletal and dental features associated with megadont adaptation |
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Robust |
rugged/strongly built large chewing muscles megadont crushing and grinding hard foods |
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megadont |
big teeth |
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encephalization |
brain size scaled to body size |
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synchronic |
Coexist exist at the same TIME |
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sympatric |
refers to species that coexist within the same geographic region |
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phyletic sequence |
an unbroken lineage of ancestor -descendent species |
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orthognathic |
flat face (humans) |
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prognathic |
lower part of face protruding outward.(chimps) |
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Breccia |
a rock formation composed of stone fragments imbedded within a fine grain cement- like mix |
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punctuated anagenesis |
combines slow and gradual change |
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Sahelanthropus tchadensis |
chad,africa small brainsmaller canines thick enamel |
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orrorin tugenesis |
facultative biped thick enamel honing complex(primative) |
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Ardipithicus |
Kadaba (more primitive) pointed canines Ramidus (Ardi) smaller canines |
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Australopithecus anamensis |
first ,earliest possible evolution from ardipithicus ramadius? |
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aus. afarensis |
lucy and salam bipedalism evident in pelvis |
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Australopithecines |
facultative bipedalism---> obligate encephalization |
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paranthropus |
ROBUST megadont large zygomatic arches(cheek bones) large sagittal crest provided a large area to anchor these chewing muscles to the skull |
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sediba |
most recent species of australopithecine time of transition from austro to homo |
