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11 Cards in this Set
- Front
- Back
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GEOLOGIC COLUMN
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The ordered arrangement of rock layers, which is based upon the ages of the rocks
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THEORY OF EVOLUTION
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states that organisms change time and that new kinds of organisms are derived from ancestral types
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CENOZOIC ERA
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THE MOST RECENT GEOLOGIC ERA BEGINNING 65 MILLION YRS AGO AGE OF THE MAMMALS
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ERA
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A VERY LARGE UNIT OF GEOLOGIC TIME
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MESOZOIC ERA
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geologic era that lasted from245 million to 65 million years ago
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PALEOZOIC Era
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geologic era that followed precambrian time lasting from 570 million to 245 million years ago
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PRECAMBRIAN TIME
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EARLIEST AND LONGEST GEOLOGIC ERA LASTING FROM 4.6 BILLION TO 570 MILLION YRS AGO
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vertebrate
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animal with a backbone
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invertebrates
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animal without a backbone
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Periods
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subdivision of a geologic era
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EPOCHS
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SUBDIVISION OF A GEOLOGIC PERIOD
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