Biostratigraphic units are also called biozones.
Notes on verification
Confirmed by Britannica, the International Commission on Stratigraphy's official guide, and multiple additional geology sources, all consistently equating biostratigraphic units with biozones. [cascade flags: aggregator_dropped_primary_exists | tier=bronze indep_score=0.3 clusters=2 claim_tier=everyday]
Sources
- Biozone (wikipedia)
- https://stratigraphy.org/guide/bio (corroboration)
- https://geocopy.wordpress.com/2016/01/04/biostratigraphy/ (corroboration)