fossiliferous

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 23
by James St. John

Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 2
by James St. John

Nonmarine ostracod limestone (Benwood Limestone, Upper Pennsylvanian; Route 7 roadcut north of Narrows Run, Belmont County, Ohio, USA) 2
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 52
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 6
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 64
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 69
by James St. John

Mudshale (Drakes Formation, Upper Ordovician; Dunkinsville Southwest roadcut, Ohio, USA) 5
by James St. John

Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Clinton Furnace Road roadcut, south-southeast of Lyra, Ohio, USA) 5
by James St. John

Crinoid stems (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 15
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 7
by James St. John

Fossiliferous limestone (Leitchfield Formation, Upper Mississippian; Western Kentucky Parkway roadcut, southern side of Leitchfield, Kentucky, USA) 8
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 43
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 1
by James St. John

Ames Limestone (Upper Pennsylvanian; Route 22 roadcut, west of Steubenville, Ohio, USA) 2
by James St. John

Hexagonaria sp. (fossil coral) (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 7
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 40
by James St. John

Blunt Run (Muskingum County, Ohio, USA) 3
by James St. John

Limestones (Chepultepec Formation, Lower Ordovician; Natural Bridge State Park, Virginia, USA) 5
by James St. John

Lowellville Shale (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 3
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 3
by James St. John

Fossiliferous limestone (Leitchfield Formation, Upper Mississippian; Western Kentucky Parkway roadcut, southern side of Leitchfield, Kentucky, USA) 2
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 41
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 4
by James St. John

Limestone & shale (Bellevue Limestone over Fairview Formation, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 1
by James St. John

Hexagonaria sp. (fossil coral) (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 5
by James St. John

Putnam Hill Limestone (Middle Pennsylvanian; Rt. 79 roadcut, Perry Township, Coshocton County, Ohio, USA) 5
by James St. John

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

Fossiliferous mudshale (Price Formation, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 14
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 46
by James St. John

Pottsville Group (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 7
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian) (Symmes Creek, Mollies Rock Road bridge, Muskingum County, Ohio, USA) 2
by James St. John

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

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Mt. Scott Range, South Australia) 13
by James St. John

Fossiliferous mudshale (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 1
by James St. John

Strophomenid brachiopod with encrusting inarticulate brachiopod (Solsville Shale, Middle Devonian; Morrisville North roadcut, Madison County, New York State, USA)
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 70
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 71
by James St. John

Horseshoe Falls (19 November 2017) (Flat Fork, Warren County, Ohio, USA) 10
by James St. John

Pottsville Group over Maxville Limestone (East Fultonham Pit, Muskingum County, Ohio, USA) 9
by James St. John

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

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 22
by James St. John

Columbus Limestone (Middle Devonian; North Side Quarry, Kelleys Island, Lake Erie, Ohio, USA) 45
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 46
by James St. John

Flattened fossil log in bituminous coal (Lower Mercer Coal, Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 1
by James St. John

Brachiopod fossil (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 7
by James St. John

Spiriferid brachiopod (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 1
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 72
by James St. John

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

Lower Mercer Limestone (Middle Pennsylvanian; Clay Pit Road Outcrop, Muskingum County, Ohio, USA) 7
by James St. John

Pottsville Group (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 12
by James St. John

Chert nodule in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 1
by James St. John

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 26
by James St. John

Hexagonaria sp. (fossil coral) (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 19
by James St. John

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

Geode (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 23
by James St. John

Shale-siltstone-sandstone (Logan Formation, Lower Mississippian; Jackson North roadcut, Ohio, USA) 3
by James St. John

Limestone and shale (Ashlock Formation, Upper Ordovician; Route 52 roadcut, near Point Leavell, Kentucky, USA) 4
by James St. John

Ectenocrinus simplex fossil crinoids (Kope Formation, Upper Ordovician; Petersburg, Kentucky, USA) 4
by James St. John

Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 2
by James St. John