Biozone

Stratigraphic position

Geographical extension

Age

Calpionella-spicules assemblage zone

(No.11)

The most upper part of the Surmeh Formation and the base of Fahliyan Formation

Fars region

Tithonian-Neocomian

Radiolaria flood facies (No.12)

The lower part of the Sarvak and Garu formations

Lorestan region

Neocomian-Albian

Globigerinelloides algeriana-Biglobigerinella barri assemblage zone (No.13)

Sarvak and Garu formations

Lorestan region

Aptian

Pseudocyclammina lituus-Trocholina assemblage zone (No.14)

Fahliyan Formation

Khuzestan and Fars region

Neocomian

Choffatella-Cyclammina assemblage zone (No.15)

Gadvan Formation

Khuzestan and Fars region

Barremian-Aptian

Hensonella-Orbitolina-Choffatella assemblage zone (No.16)

Dariyan Formation

Khuzestan and Fars region, northeastern Lorestan

Aptian

Conical Orbitolina assemblage zone

(No.18)

The upper part of the Dariyan Formation

Khanekat area in Fars

Albian