The reef, 5 m high and about 20 m in lateral extension, is lens-like. The main reef-building organisms are Tubiphytes, Archaeolithoporella (and other encrusting calcimicrobes), and bryozoans.
Larger foram zuggest Gzhelian age.
Abundant marine cement sugges high-energy environment. High-energy above FWWB.
Triple hybrid carbonate: Skeleton-microbial-cement reef.