Lower Carboniferous

Lower Carboniferous

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Lower Carboniferous - from 345 million to 310 million years agoLower Carboniferous - from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
Carboniferous, Carboniferous period - from 345 million to 280 million years ago
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