oligocene | ||
1. | [ noun ] (geology) from 25 million to 40 million years ago; appearance of sabertoothed cats | |
Synonyms: | Oligocene_epoch | |
Related terms: | epoch Tertiary | |
Similar spelling: |
oligoclase oligochaete Oligochaeta |
oligocene | ||
1. | [ noun ] (geology) from 25 million to 40 million years ago; appearance of sabertoothed cats | |
Synonyms: | Oligocene_epoch | |
Related terms: | epoch Tertiary | |
Similar spelling: |
oligoclase oligochaete Oligochaeta |