CARBONIFEROUS PERIOD

WordNet Dictionary

	Definition:	[n] from 280 million to 345 million years ago

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	Synonyms:	Carboniferous

	See Also:	geological period, Lower Carboniferous, Lower Carboniferous period, Missippian period, Mississippian, Paleozoic, Paleozoic era, Pennsylvanian, Pennsylvanian period, period, Upper Carboniferous, Upper Carboniferous period