carboniferous_period | ||
1. | [ noun ] (geology) from 280 million to 345 million years ago | |
Synonyms: | Carboniferous | |
Related terms: | period Paleozoic Mississippian Pennsylvanian | |
carboniferous_period | ||
1. | [ noun ] (geology) from 280 million to 345 million years ago | |
Synonyms: | Carboniferous | |
Related terms: | period Paleozoic Mississippian Pennsylvanian | |