Type
Subzone
Age range
15.9–14.4 Ma

International Timescale

Miocene
Langhian

Neogene North Pacific Diatom Biochronology Subzones

D. hyalina - D. praehyalina
Denticulopsis lauta
Denticulopsis praelauta
15.915.815.715.615.515.415.315.215.115.014.914.814.714.614.514.4

Macrostrat

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