Bangor Limestone
Pennington group
Fenestrate bryozoan buildup.
Bryozoans together with rugose corals, stalked echinoderms, soft-bodied organisms encrusted by foraminifera. 
Biodetrital mound
Mound resting on bored oolitic shoals. 
25 m wide, 1.6 m thick, roughly circular. 

