Heliophyllum (Heliophyllum sp.) silicified section of solitary horn coal
Bob Campbell Geology Museum
Endopachys sp., steinkern of internal matrix
Bob Campbell Geology Museum Formation: Santee Limestone.
Zaphrentis aff. spinosa, four incomplete corals
Bob Campbell Geology Museum Formation: Monteagle Limestone.
Lophophyllidium proliferum, eight specimens
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Septustrea marylandica, three coral specimens
Bob Campbell Geology Museum Formation: Eastover Formation.
Heterophrentis sp., short, curving conical corals
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Endopachys sp., steinkern (internal morphology) in matrix
Bob Campbell Geology Museum Formation: Santee Limestone.
Lophophyllidium proliferum, small, isolated horn coral, conical
Bob Campbell Geology Museum Formation: Oread Formation.
Horn coral (Helicophyllum sp.)
Bob Campbell Geology Museum 425 million years old; Formation: Jeffersonville Limestone.
Grewingkia canadensis, two incomplete solitary rugose corals
Bob Campbell Geology Museum Formation: McMillan Formation.
Tabulate coral (Syringopora sp.)
Bob Campbell Geology Museum 425 million years old; Formation: Jeffersonville Limestone.
Tabulate coral (Aulopora sp.)
Bob Campbell Geology Museum 425 million years old; Formation: Jeffersonville Limestone.
Astrangia sp., oyster valve covered by coral growth
Bob Campbell Geology Museum Formation: Caloosahatche Formation.
Heterophrentis sp., short, cuning conical corals
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Astrangia conradi, seven small coral colonies
Bob Campbell Geology Museum Formation: Eastover Formation.
Lophophyllidium proliferum, sol. coral, thing slightly curving conical theca
Bob Campbell Geology Museum Formation: Graham Formation.
Grewingkia canadensis, three solitary homcorals, long and conical
Bob Campbell Geology Museum Formation: McMillan Formation.
Grewingkia canadensis. two solitary rugose corals in limestone
Bob Campbell Geology Museum Formation: McMillan Formation.