Type
Subzone
Age range
17.54–16.69 Ma
Miocene
Burdigalian
F. birnageae LOSZ
D. venezuelana PRSZ
Globigerinatella sp./C. dissimilis CRZ
17.617.517.417.417.417.317.317.217.117.117.117.016.916.916.916.816.816.7