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Pennsylvanian period   /pˌɛnsɪlvˈeɪniən pˈɪriəd/   Listen
Pennsylvanian period

noun
1.
From 310 million to 280 million years ago; warm climate; swampy land.  Synonyms: Pennsylvanian, Upper Carboniferous, Upper Carboniferous period.





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Words linked to "Pennsylvanian period" :   Upper Carboniferous, Carboniferous period, period, carboniferous, geological period, Pennsylvanian


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