Stromatoporoid-microbial mounds and banks.
200-300 m thick bank with 4-6 m thick bioherms.
Microbes and alage: Renalcis, Izhella, Shuguria, Epiphyton, Sphaerocodium, Girvanelly, Chbakovia, Paleomicrocodium, Ortonella and solenoporids.
Various isopachos fibrous texture through microbial crusts.

