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Pennsylvanian period
Noun
the period from 310 million to 280 million years ago; characterized by warm climate and swampy land
synonym
Pennsylvanian
Upper Carboniferous
Upper Carboniferous period
holo part
Carboniferous
Carboniferous period
instance hypernym
geological period
period
Pennsylvanian period vs Pennsylvanian
Pennsylvanian period vs Upper Carboniferous
Pennsylvanian period vs Upper Carboniferous period
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