fossiliferous

Skelley Member (Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 3
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 7
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 16
by James St. John

Colonial rugose coral in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA) 5
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 3
by James St. John

Lafarge Marblehead Quarry (Marblehead Peninsula, Ohio, USA) 12
by James St. John

Lafarge Marblehead Quarry (Marblehead Peninsula, Ohio, USA) 15
by James St. John

Waynesville Formation (Upper Ordovician; Roaring Run, Warren County, Ohio, USA) 36
by James St. John

Limestones (Chepultepec Formation, Lower Ordovician; Natural Bridge State Park, Virginia, USA) 1
by James St. John

Coral in fossiliferous limestone (building stone at Marion Union Station, Marion, Ohio, USA) 10
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 53
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 7
by James St. John

Ripple marks (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 1
by James St. John

Gutter cast in limestone (Upper Ordovician; Cincinnatian area, USA) 3
by James St. John

Dolomite-cemented dolostone breccia 3
by James St. John

Geode (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 24
by James St. John

Favositid coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 3
by James St. John

Fossil colonial coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 2
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 6
by James St. John

Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Clinton Furnace Road roadcut, south-southeast of Lyra, Ohio, USA) 3
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 6
by James St. John

Brachiopods (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 3
by James St. John

Nummulites gizehensis (fossil foraminifera) in limestone (Mokattam Formation, Middle Eocene; near Cairo, Egypt) 2
by James St. John

Fossiliferous mudshale (Price Formation, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 3
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 2
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 1
by James St. John

Aragonite needles in vug in dolostone (Vinton Member, Logan Formation, Lower Mississippian; Route 16 roadcut northeast of Frazeysburg, Ohio, USA) 6
by James St. John

Bituminous coal (Middle Mercer Coal, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 6
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 3
by James St. John

Waynesville Formation (Upper Ordovician; Roaring Run, Warren County, Ohio, USA) 31
by James St. John

Silica Formation (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 4
by James St. John

Semi-anthracite coal (Merrimac Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 12
by James St. John

Columbus Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 14
by James St. John

Imbricated gravel (Salt Creek gravel bar, Haynes, Hocking County, Ohio, USA) 1
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 2
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 23
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 15
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 10
by James St. John

Solitary rugose corals (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 30
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1
by James St. John

Strophomenid brachiopod (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 1
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 3
by James St. John

Archaeocyathan limestone (Wirrapowie Limestone, Lower Cambrian; Mernmerna railroad bridge dry creek cut, South Australia) 1
by James St. John

Middle Mercer Coal under the Lower Mercer Limestone (Pottsville Group, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 2
by James St. John

Waynesville Formation (Upper Ordovician; Roaring Run, Warren County, Ohio, USA) 22
by James St. John

Strophomenid brachiopod (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 2
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 54
by James St. John

basal Waynesville Formation (Upper Ordovician; Roaring Run, Warren County, Ohio, USA) 1
by James St. John

Fossil colonial corals (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 4
by James St. John

Maxville Limestone (Mississippian; Jonathan Run, north-northwest of Fultonham, Ohio, USA) 8
by James St. John

Limestones (Chepultepec Formation, Lower Ordovician; Natural Bridge State Park, Virginia, USA) 8
by James St. John

Favositid coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 11
by James St. John

Solitary rugose corals (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 2
by James St. John

Middle Mercer Clay (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 1
by James St. John

Fossil plants in carbonaceous shale (top of Pottsville Formation, Middle Pennsylvanian; old coal mine ENE of St. Clair, Pennsylvania, USA) 10
by James St. John

Fossil colonial coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 24
by James St. John

Fossiliferous mudshale (Price Formation, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 2
by James St. John

Waynesville Formation over Arnheim Formation (Upper Ordovician; Roaring Run, Warren County, Ohio, USA) 3
by James St. John

Geode (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 15
by James St. John

Rugose coral (Lockport Dolomite, Middle Silurian; quarry in Ottawa County, Ohio, USA)
by James St. John