paleozoic | ||
1. | [ noun ] (geology) from 230 million to about 544 million years ago | |
Synonyms: | Paleozoic_era | |
Related terms: | era Permian Silurian Ordovician Cambrian Devonian Carboniferous | |
paleozoic | ||
1. | [ noun ] (geology) from 230 million to about 544 million years ago | |
Synonyms: | Paleozoic_era | |
Related terms: | era Permian Silurian Ordovician Cambrian Devonian Carboniferous | |