Geologic timespans similar to or like Permian
Geologic period and system which spans 47 million years from the end of the Carboniferous period million years ago , to the beginning of the Triassic period 251.902 Mya. Wikipedia
- The current southern Rockies were forced upwards through the layers of Pennsylvanian and Permian sedimentary remnants of the Ancestral Rocky Mountains.
- During the Permian period, the land became dominated by seed plants such as Glossopteris, a pteridosperm which grew in swamps.
- The bedrock underlying Birmingham was mostly laid down during the Permian and Triassic periods.
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