fossiliferous

Delaware Limestone over Columbus Limestone (Middle Devonian; Marblecliff Quarry, Hilliard, Ohio, USA) 1
by James St. John

Plant fossils in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 2
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Mohawk Dam emergency spillway, western Coshocton County, Ohio, USA) 7
by James St. John

Interbedded fossiliferous limestones and shales (Fairview Formation-Bellevue Limestone, Upper Ordovician; upper cut, Maysville West roadcut, Kentucky, USA) 2
by James St. John

Ambonychia sp. (fossil bivalve) (Waynesville Formation, Upper Ordovician; Roaring Run, Warren County, Ohio, USA)
by James St. John

Grewingkia canadensis (fossil rugose coral encrusted with bryozoans) (Whitewater Formation, Upper Ordovician; Richmond South roadcut, Wayne County, Indiana, USA) 5
by James St. John

Cherty ironstone (?) (Boggs Member, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 1
by James St. John

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 15
by James St. John

Hexagonaria sp. (fossil coral) (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 25
by James St. John

Parvohallopora laevigata (fossil bryozoan) (Upper Ordovician; Cincinnati region, USA) 2
by James St. John

Trilobite packstone (Alum Shale Formation, Upper Cambrian; Kinnekulle Outlier, Västergötland, Sweden) 15
by James St. John

Fossiliferous limestones (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 49
by James St. John

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

Anthracospirifer occiduus fossil brachiopod (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 1
by James St. John

Fossiliferous limestone (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 2
by James St. John

Mancos Shale badlands (Upper Cretaceous; Book Cliffs region, eastern Utah, USA) 5
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 58
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 41
by James St. John

Geneva Dolomite Member of the Jeffersonville Limestone (Lower Devonian) over the Louisville Limestone (Middle Silurian) over the Waldron Shale (Middle Silurian) (St. Paul Stone Quarry, St. Paul, Indiana, USA) 3
by James St. John

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

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 8
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 15
by James St. John

Trilobite packstone (Alum Shale Formation, Upper Cambrian; Kinnekulle Outlier, Västergötland, Sweden) 3
by James St. John

Interbedded fossiliferous limestones and shales (Kope Formation-Fairview Formation-Bellevue Limestone, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 3
by James St. John

Fossiliferous ocherous dolomitic siltstone (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 2
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 1
by James St. John

Burrowed calcisiltite (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 2
by James St. John

Fossil scallop in ironstone concretion (Nancy Member, Borden Formation, Lower Mississippian; Lewis County, Kentucky, USA) 3
by James St. John

Bryozoan mass (Whitewater Formation, Upper Ordovician; Camden West roadcut, Preble County, Ohio, USA) 2
by James St. John

Macroneuropteris scheuchzeri (fossil seed fern) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; Mazon Creek area, Illinois, USA) 2
by James St. John

Trilobite packstone (Alum Shale Formation, Upper Cambrian; Kinnekulle Outlier, Västergötland, Sweden) 13
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 15
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Route 16 roadcut northeast of Frazeysburg, Ohio, USA) 5
by James St. John

Fossiliferous limestone (building stone at Marion Union Station, Marion, Ohio, USA) 9
by James St. John

Bryozoan fossils in limestone (Drakes Formation, Upper Ordovician; Dunkinsville Southwest roadcut, Ohio, USA) 2
by James St. John

Flint-knapped spearpoint (Flint River Chert, Oligocene; near Albany, Georgia, USA) 2
by James St. John

Burrowed calcisiltite (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 1
by James St. John

Flint with drusy quartz-lined fracture (Upper Mercer Flint, Middle Pennsylvanian; Nellie West Outcrop, Coshocton County, Ohio, USA) 1
by James St. John

Rugose corals in fossiliferous limestone (Middle Devonian) 2
by James St. John

Fossiliferous limestone (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 9
by James St. John

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 11
by James St. John

Fossiliferous coal ball fragment (Duquesne Coal, Upper Pennsylvanian; Route 22 roadcut, west of Steubenville, Ohio, USA)
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian) (Symmes Creek, Mollies Rock Road bridge, Muskingum County, Ohio, USA) 8
by James St. John

Fossiliferous fluvial deposit (Long Pine Formation, Pliocene, 2-3 Ma; Zebra Quarry, Ashfall Fossil Beds, Nebraska, USA) 4
by James St. John

Plant fossils in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 16
by James St. John

Limestone (Ashlock Formation, Upper Ordovician; Route 52 roadcut, near Point Leavell, Kentucky, USA) 1
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 6
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 11
by James St. John

Trigonostoma tenera fossil snail shell (Caloosahatchee Formation, Upper Pliocene-Lower Pleistocene; gravel pit in southwestern Florida, USA) 1
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 4
by James St. John

Geopetal structure in Platystrophia ponderosa brachiopod in limestone (Corryville Member, McMillan Formation, Upper Ordovician; Flemingsburg South roadcut, Fleming County, Kentucky, USA) 1
by James St. John

Chert with weathering rind (Boggs Member, Pottsville Group, Pennsylvanian; Dillon Reservoir roadcut, Muskingum County, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 27
by James St. John

Lower Mercer Limestone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 14
by James St. John

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

Brachiopod fossils in sandstone (Byer Sandstone, Lower Mississippian; west of Toboso, Ohio, USA) 7
by James St. John

Onychodus sigmoides (fossil fish jaw) (Columbus Limestone, Middle Devonian; Ohio, USA)
by James St. John

Plant fossil in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 24
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, 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) 24
by James St. John