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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Relative Dating Methods |
- Stratigraphic Correlation Dating - Biostratigraphic Dating |
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Stratigraphic Correlation Dating |
- Lithostratigraphy - Composition - Position in Sequence |
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Biostratigraphic Dating |
- Use known fossils to date other things within same layer |
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Four Geological Principals |
1 - Original Horizontality 2 - Superposition 3 - Lateral Continuity 4 - Faunal Succession ( Same strata based on fossil position) |
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Marine Shell Isotopes |
Oxygen Isotopes ( Assists in determining warm or cold weather seasons per amount of H₂O¹⁸) |
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Isotopes used to reconstruct diets |
Carbon Isotopes and Potassium Isotopes |
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Absolute Dating Methods |
- Dendrochronology - Radiometric Dating |
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Dendrochronology |
- Use of counting rings within a tree |
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Radiometric Dating |
- Use of unstable radio active isotopes |
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Two traits for a Hominin fossil |
- Obligate Bipedal locomotion - Non-honing chewing complex |
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What are skeletal indicators of bipedalism? |
- Wider hip bones - Relatively longer legs than arms |
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Origins of Hominins |
- Hunting hypothesis - Patchy forest hypothesis - Provisioning hypothesis |
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Who are Pre-Australopithecines hominins? Where did they live? |
- Sahelanthropus Tchadensis - Orrorin Tugenensis - Ardipithecus
-Lived in Africa |
Three genus |
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Who are Australopithecines found in South Africa? |
- Anamensis - Aferensis - Africanus - Garhi - Sediba
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Eastern Australopithecines |
- Aethiopicus - Boisei |
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Who is Lucy and what species does it belong too? |
A fossil specimen belonging to a female Australopithicus Afarensis species |
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What are the main differences between Australopithicus and Paranthropus? |
One has robust cranial features and the other has gracile cranial features. |
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Earliest hominin in the genus Homo |
- Homo Habilis - H. Rudolfensis |
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First tool culture |
- Oldowan tools (Hammerstones, Corestones, and Sharp Flakes) |
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What traits define the genuus Homo? |
- Relatively large brains - Fully developed opposabble thumbs - Limb structure fully adapted to bipedalism |
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