noun
- a subdivision of a geological epoch
Usage: geological
Examples
- The Paleocene epoch is divided into several subepochs based on fossil evidence.
- Scientists identified a new subepoch within the Miocene period.
- Climate changes during this subepoch affected marine ecosystems.
- The subepoch lasted approximately two million years.
- Researchers study rock layers to define subepoch boundaries.
- This subepoch is characterized by distinctive mammalian fossils.