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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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โˆ™ 2006-09-28 14:20:42
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Q: How long ago was the Pennsylvanian Period?
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Related questions

How long ago was the Mississippian Period?

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.

How long did the pennsylvanian period last?

34 million years.

What happened during the Pennsylvanian period?

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

What animal life appereaed during the Pennsylvanian Period?

The first reptiles appeared in the Pennsylvanian Era/Period.

When did the Pennsylvanian period start?

I have no clue.

Insects thrived during this period?

Pennsylvanian R.E

What was the dominant reptile in the Pennsylvanian period?


In what period did conifers appear?

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.

What happened 544-245 million years ago?

The Paleozoic Era began. Development of fish amphibians, insects and reptiles. Cambrian Period Ordovician period Silurian Period. Devonian Period Mississippian Period Pennsylvanian Period Permian Period

What animals and plants lived during the pennsylvanian period?

The animal that thrived the most in the Pennsylvanian Period was the reptile. Studies of fossils show that they first appeared during this period and quickley reproduced.

Today's fossil fuels began forming about 300 million years ago in pennsylvanian period. what was most likely true about that time period?

Many huge plants grew, decayed and died.

What is the Mississippian and Pennsylvanian periods grouped together?

The Carboniferous Period

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