Formation | Biozone | Age |
Basal limestones of the Asmari Formation | 56. Lepidocyclina-Opercolina-Ditropaassemblage zone | Oligocene? |
Lower Part of Asmari Formation | 57. Nummulites intermedius-Nummulites vascus assemblage zone | Oligocene |
Lower Part of Asmari Formation | 58. Archaias operculiniformis totalrange zone Oligocene |
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Middle Part of Asmari Formation ―Lowest Levels of the Gachsaran Formation | 59. Austrotrillina howchini-Peneroplis evolutus assemblage zone 60. Austrotrillina howchini-Peneroplis evolutus (Gachsaran Fm.) | Lower Miocene (Aquitanian) |
Upper Part of Asmari Formation―Lower Parts of the Gachsaran and Razak Formations | 61, 62. Borelis melo curdica zone | Lower Miocene (Burdigalian) |