| Age | Rock unit | biozones |
| Burdigalian | Upper Asmari | Borealis melo, Meandropsina iranica |
| Aquitanian | Middle Asmari | Miogypsinoides, Archias, Valvulinid |
| Oligocene | Lower Asmari | Eulepidina, Nephrolepidina, Nummulites |