Difference between revisions of "Paleozoic"
(Some rearrangement, altered wording, and put list into table to prevent wrapping around picture.) |
(Wikilink other periods, and remove one that's actually part of the Carbiniferous (at least according to my source)) |
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*[[Cambrian]] | *[[Cambrian]] | ||
*[[Ordovician]] | *[[Ordovician]] | ||
| − | *Silurian | + | *[[Silurian]] |
| − | *Devonian | + | *[[Devonian]] |
| − | * | + | *[[Carboniferous]] |
| − | + | *[[Permian]] | |
| − | *Permian | ||
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'''Paleozoic''' means ''ancient life''. | '''Paleozoic''' means ''ancient life''. | ||
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== References == | == References == | ||
<references/> | <references/> | ||
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[[Category:Geology]] | [[Category:Geology]] | ||
Revision as of 11:46, December 16, 2007
The Paleozoic era is the earliest of three geologic eras of the Phanerozoic eon in the Geologic system of classifying rocks.
The Paleozoic era is divided into seven different periods:
Paleozoic means ancient life.
The Paleozoic starts shortly after the breakup of a supercontinent called Pannotia and at the end of the era, the continents gathered together into a supercontinent called Pangea (approximately 300 million years). The Paleozoic is bracketed by two of the most important events in the history of animal life. At its beginning, multicelled animals underwent a dramatic "explosion" in diversity, and almost all living animal phyla appeared within a few millions of years. At the other end of the Paleozoic, the largest mass extinction in history wiped out approximately 90% of all marine animal species. [1]