Term
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Definition
| gradual significant drying of the southern hemesphire. The rain forest were drying up and the savana lands increase. |
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Term
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Definition
| shift in all species... upright posture and less body hair. population movement to an new enviornment and able to adapt. |
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Term
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Definition
fossil that exhibits all the characteristics of the species.
51 type specamins classified into 17 species |
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Term
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Definition
| a general classification of a speciese lumping them into groups. When scientist do reaserch they find small imperfections, the lumpers put them still in the same species and just lump togeather the specieces. |
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Term
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Definition
| When doing reaserch and finding small imperfections they think that the small new findings create a completley new species. |
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Term
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Definition
| Study of the site characteristics from which a fossil was found. the ph of the soil, acidic soil causes decay of organic material. most ideal soil is volcanic ash. |
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Term
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Definition
| The layes of the earth... think of the whoo doos |
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Term
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Definition
| way of dating organic fossils up to 75,000 years. limited in time. |
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Term
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Definition
| used on non organic material. only accurate on material over 200,000 years. |
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Term
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Definition
Not Continuous or Uniform
1) Increased body size
2) increasing brain size
3) decreasing skeletal robustness
4) decreasing sexual dimorphism
5) decreasing tooth size
6) increasing use of tools. |
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Term
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Definition
- pre dates Lucy by 1 million years.
- 4 ft 10 " 110 Lbs
- Positioning of the Great toe "divergent toe"
- for grasping things
- Lived in trees but walked upright
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Term
| Australopithecus afarensis |
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Definition
3.2 million yrs ago
310-485 cc
Lucy
Larg incisors diastima ( space for the k 9 teeth)
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Term
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Definition
2.4-1.6 million yrs ago
skull capacity average of 690cc
fist evidence of a creature making a tool.
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Term
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Definition
1.8 mil - 200,000 yrs ago
1000 average
increase in body size
fisrt fossile species to migrate out of africa
first evidence of man using fire |
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Term
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Definition
400,000 - 200, 000 yrs ago
middle east, europe, asia
1125 cc |
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Term
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Definition
50,000 yrs ago
1300cc
No specimens in africa |
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Term
| What Fossil species are not in the driect line to modern man |
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Definition
Homo Neanderthalensis
Homo erectus
Homo Rudolfensis |
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