- 1. a. Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods. Source: opted
- 2. n. The Oligocene period. See the Chart of Geology. Source: opted
- 3. Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods. -- n. The Oligocene period. See the Chart of Geology. Source: webster
- 4. Of, pertaining to, or designating, certain strata which occupyan intermediate position between the Eocene and Miocene periods.-- n. Source: adambom
- 5. n. from 40 million to 25 million years ago; appearance of sabertoothed cats Source: ecdict
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oligocene
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certaindesignatingeoceneintermediatemioceneperiodspertainingpositionstratachartgeologymillionoccupyperiodseeagoappearancecatssabertoothedyears
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