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10 Cards in this Set
- Front
- Back
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What is phylogeny?
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The evolutionary history of a species
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What is systematics?
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The study of the diversity of life and its phylogenetic history
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What is the richest source of fossils?
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Sedimentary rock
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What are the four eras of the geological time scale?
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Precambrian, Paleozoic, Mesozoic, and Cenozoic
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What is radiometric dating used for?
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Determining the ages of rocks and fossils
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What is the half-life of Carbon-14 (used for dating young fossils)?
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5600 years
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What is the half-life of Uranium-238 (used for dating old fossils)?
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4.5 billion years
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How long ago did Pangaea come into existence?
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250 million years ago
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What was one important trait of the Paleozoic era?
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Pangea was whole.
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When did Pangea break apart?
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180 million years ago
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