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Pennsylvanian period vs Upper Carboniferous period

Upper Carboniferous period vs Pennsylvanian period

Pennsylvanian period and Upper Carboniferous period both are nouns.

Word NounAdjectiveVerbAdverb
Pennsylvanian period Yes No No No
Upper Carboniferous period Yes No No No
As nouns, Pennsylvanian period and Upper Carboniferous period are synonyms defined as:
  • Pennsylvanian period and Upper Carboniferous period: the period from 310 million to 280 million years ago; characterized by warm climate and swampy land
Other synonyms of Pennsylvanian period include Pennsylvanian, Upper Carboniferous.
Pennsylvanian period (noun) Upper Carboniferous period (noun)
the period from 310 million to 280 million years ago; characterized by warm climate and swampy land the period from 310 million to 280 million years ago; characterized by warm climate and swampy land
Difference between Pennsylvanian period and Upper Carboniferous period

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