tracing evolutionary history. macroevolution dating prehistoric material radioactive isotopes carbon...
Post on 21-Dec-2015
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![Page 1: Tracing Evolutionary History. Macroevolution Dating Prehistoric Material Radioactive Isotopes Carbon 14 Potassium 40](https://reader030.vdocuments.mx/reader030/viewer/2022032521/56649d575503460f94a361bc/html5/thumbnails/1.jpg)
Tracing Evolutionary History
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Macroevolution
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Dating Prehistoric Material
• Radioactive Isotopes
• Carbon 14
• Potassium 40
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Continental Drift
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San Andreas Fault
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Extinction events
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Potential Causes
• Bottom line is we’re not totally sure.
• What evidence do we have?
• Many theories– Meteor– Continental drift– Increased volcanic activity
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Key Adaptations
• Extinctions followed by explosive increase in diversity among remaining species
• What allowed certain species to survive?– Key adaptations
• Cretaceous adaptations
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Paedomorphosis
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Taxonomy
• Classification & naming of life
• Carolus Linnaeus– Binomial nomenclature– Name includes Genus & species levels of
organization
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Systematic Classification
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Phylogenitics