Type
Subzone
Age range
16.27–15.1 Ma
Miocene
Langhian
Burdigalian
O. suturalis LOZ
P. glomerosa LOSZ
P. sicana LOSZ
16.316.316.216.116.116.116.015.915.915.815.815.815.715.715.615.615.515.415.415.315.315.315.215.215.115.1