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How long ago was the Pennsylvanian Period?


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2006-09-28 14:20:42
2006-09-28 14:20:42

The Pennsylvanian Period was from about 325 million to 280 million years ago. It is part of the Paleozoic Era. The Pennsylvanian and the Mississippian (345 to 325 MYA) are often grouped together as the Carboniferous Period.

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The Mississippian Period was from about 345 million to 325 million years ago. It is part of the Paleozoic Era. The Mississippian and the Pennsylvanian (325 to 280 MYA) are often grouped together as the Carboniferous Period.

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The Pennsylvanian Period was a very crucial time for fungi and vertebrates.

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The first reptiles appeared in the Pennsylvanian Era/Period.

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Pennsylvanian Period..........by R.E

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The first conifers appeared between 318 and 299 million years ago. That was during the end of the Carboniferous period. Specifically, it was during the Pennsylvanian series.


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