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Carboniferous vs Pennsylvanian period

Pennsylvanian period vs Carboniferous

Carboniferous and Pennsylvanian period both are nouns.

Word NounAdjectiveVerbAdverb
Carboniferous Yes No No No
Pennsylvanian period Yes No No No
Carboniferous (noun) Pennsylvanian period (noun)
the period from 345 million to 280 million years ago the period from 310 million to 280 million years ago; characterized by warm climate and swampy land
Difference between Carboniferous and Pennsylvanian period

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