Horn coral (Helicophyllum sp.)
Bob Campbell Geology Museum 425 million years old; Formation: Jeffersonville Limestone.
Tabulate coral (Syringopora sp.)
Bob Campbell Geology Museum 425 million years old; Formation: Jeffersonville Limestone.
Heliophyllum (Heliophyllum sp.) silicified section of solitary horn coal
Bob Campbell Geology Museum
Lophophyllidium proliferum, eight specimens
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Astrhelia sp., three large fragments of branching colonial coral
Bob Campbell Geology Museum Formation: Yorktown Formation.
Astrhelia sp., stout ebony with a thick walled skeleton
Bob Campbell Geology Museum Formation: Coastal plain deposits.
Septustrea marylandica, three coral specimens
Bob Campbell Geology Museum Formation: Eastover Formation.
Lophophyllidium proliferum, sing. coral, slightly curving
Bob Campbell Geology Museum Formation: Graham Formation.
Favosites canadensis, massive colony with long, narrow, closely packed corallites
Bob Campbell Geology Museum Formation: Onandaga Limestone; Nedrow mem.
Favistina stellata, colonial rugose coral with 12 short septa
Bob Campbell Geology Museum Formation: McMillan Formation.
Grewingkia canadensis, two incomplete solitary rugose corals
Bob Campbell Geology Museum Formation: McMillan Formation.
Coral 'Petosky Stone' (Hexagonaria percarinata), state stone of Michigan
Bob Campbell Geology Museum 350 million years old; Donated: H. Abercrombie.
Zaphrentis sp., three incomplete corals, conical, wide cir. calyx
Bob Campbell Geology Museum Formation: Citronelle Formation.
Astrangia conradi, seven small coral colonies
Bob Campbell Geology Museum Formation: Eastover Formation.