Rockhouse Limestone.
Mud mounds ranging from 1-3 m in width and 1-14 m in length. Maximum thickness 3 m. 
48 mounds.
Syndepositional relief around 0.5 m.
4 distinct growth phases
4 - Echinoderm-bryozoan mudstone/wackestone
3 - (thickest part) Encrusting cystoporate bryozoan Buskopora dominant. Low diversity
2 - echinoderm-bryozoan packstone
1 - Echinoderm-rich terrigenous mudstone

