| Merriam also noted that bioclastic beds occurred in the Susan Duster Limestone Member, and that the shell fragments were so numerous as to constitute a coquina. |
| The host lithology consists of bioclastic silt and siliciclastic sand, characteristic of deposition in a biostrome flank setting. |
| The bioclastic facies of the Upper Domerian and Upper Toarcian Limestone Mbrs suggest periods of shallower sedimentation above storm wave base. |
| The Middle Member is 57.3 m thick and is mainly composed of gravel-bearing calcarenite, bioclastic limestone, bioclastic micrite, and reef limestone. |
| On the margin of the channelled scour, the fill deposits pinch out leaving only a bioclastic lag of oysters and pectinids. |
| They are mainly bioclastic limestones, containing abundant fossils and fossil fragments. |
