Type
Subzone
Age range
14.4–13.8 Ma
Miocene
Serravallian
Langhian
Denticulopsis simonsenii
D. hyalina - D. praehyalina
Denticulopsis lauta
14.4014.3514.3014.2514.2014.1514.1014.0514.0013.9513.9013.8513.80