BIOL1510+F10+07+Evolution+_+Life+on+Earth

BIOL1510+F10+07+Evolution+_+Life+on+Earth - Georgia Tech...

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Biology 1510/1511 Georgia Tech School of Biology Fall 2010 Evolution and History of Life Evolutionary radiations Mass extinction events Macroevolutionary patterns Natural selection and evolution
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Biology 1510/1511 Georgia Tech School of Biology Fall 2010 Table 25.1 Know your Eras (with boundary ages in mya) Periods Epochs Imporant history of life events
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Biology 1510/1511 Georgia Tech School of Biology Fall 2010 Sea level Varies with climate (glaciation) and determines the extent of shallow shelf seas. The P/T extinction coincided with a major “low stand” Vulcanism Extensive volcanic activity can alter atmospheric composition and climate. The Siberian Traps were formed at the same time as the P/T extinction event. Bolides Rare, unpredictable, but potentially devastating. The K/T extinction appears to be defined by a bolide impact (Chicxulub crater).
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Biology 1510/1511 Georgia Tech School of Biology Fall 2010 http://www.globalwarmingart.com/wiki/Image:Phanerozoic_Sea_Level_png http://www.globalwarmingart.com/wiki/Image:Phanerozoic_Climate_Change_Rev_png Phanerozoic Sea Level and Climate NB: time runs in opposite directions in the two figures!
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This note was uploaded on 10/14/2010 for the course BIO 1510 taught by Professor Unknown during the Fall '07 term at Georgia Tech.

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BIOL1510+F10+07+Evolution+_+Life+on+Earth - Georgia Tech...

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