Macroevolutionary patterns - PowerPoint PPT Presentation

Evolution and the Fossil Record

Evolution and the Fossil Record. The Cambrian and Beyond. The nature of the fossil record. How organic remains fossilize. Four categories of fossils. defined by method of formation Compression and impression fossils Permineralized fossils Casts and Molds Unaltered Remains.

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19.2 Patterns of Evolution

19.2 Patterns of Evolution. H1N1 Swine FLU VIRUS. Macroevolutionary patterns - large scale evolutionary changes that occur over millions of years. Extinctions. Mass extinction - many species become extinct over a short period of time

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424 views • 15 slides

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