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GEO 102 Lecture 27 Outline of Last Lecture I The Sequence of Events Outline of Current Lecture II Major Paleozoic Events III Coal Current Lecture Major Paleozoic Events Cambrian o Origin of mineralized skeletons Early Paleozoic o Origin of many modern body types Ordovician o First land plants and soils Devonian o age of fishes o First amphibians Carboniferous o First reptiles o Evolution of lignin leads to coal Permian o Largest extinction event Coal Coal related to lignin evolution Lignin gives strength to cell walls Become lignite coal when buried in the right conditions These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute
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