fossiliferous

Slickenlined normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 5
by James St. John

Fossiliferous volcanic tuff (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 11
by James St. John

Laurel Member of the Salamonie Dolomite (Middle Silurian) (St. Paul Stone Quarry, St. Paul, Indiana, USA) 7
by James St. John

Minor thrust fault in interbedded fossiliferous limestones and shales (Fairview Formation, Upper Ordovician; upper cut, Maysville West roadcut, Kentucky, USA) 2
by James St. John

Pentamerid brachiopods in dolostone (Silurian) 5
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 5
by James St. John

Dixon Cave (Mammoth Cave National Park, Kentucky, USA) 5
by James St. John

Black chert nodules in limestone (Chepultepec Formation, Lower Ordovician; Natural Bridge State Park, Virginia, USA) 2
by James St. John

Fossiliferous limestone (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 1
by James St. John

Interbedded fossiliferous limestones and shales (Fairview Formation, Upper Ordovician; upper cut, Maysville West roadcut, Kentucky, USA) 1
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 22
by James St. John

Minor thrust fault in interbedded fossiliferous limestones and shales (Fairview Formation, Upper Ordovician; upper cut, Maysville West roadcut, Kentucky, USA) 3
by James St. John

Plant fossil in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 7
by James St. John

Mesaverde Sandstone over Mancos Shale (Upper Cretaceous; near the town of Grand Junction, Colorado, USA) 1
by James St. John

Upper Mercer Limestone-Upper Mercer Flint (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 2
by James St. John

Fossiliferous limestone (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 5
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Mohawk Dam emergency spillway, western Coshocton County, Ohio, USA) 4
by James St. John

Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Tunnel Hill North Portal Outcrop, Coshocton County, Ohio, USA) 3
by James St. John

Dixon Cave (Mammoth Cave National Park, Kentucky, USA) 6
by James St. John

Waldron Shale (Middle Silurian) (St. Paul Stone Quarry, St. Paul, Indiana, USA) 3
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 26
by James St. John

Mancos Shale badlands (Upper Cretaceous; Book Cliffs region, eastern Utah, USA) 3
by James St. John

Putnam Hill Limestone (Middle Pennsylvanian; Rt. 79 roadcut, Perry Township, Coshocton County, Ohio, USA) 9
by James St. John

Fossiliferous ironstone concretion (Nancy Member, Borden Formation, Lower Mississippian; Lewis County, Kentucky, USA) 2
by James St. John

Brachiopods in fossiliferous limestone (Skelley Member, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 2
by James St. John

Cuffeyella arachnoidea bryozoans encrusting a Rafinesquina ponderosa brachiopod (Whitewater Formation, Upper Ordovician; Richmond South roadcut, Wayne County, Indiana, USA) 2
by James St. John

Plant fossil in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 8
by James St. John

Mancos Shale badlands (Upper Cretaceous; near the town of Grand Junction, Colorado, USA) 1
by James St. John

Wild Dilly Pond (San Salvador Island, Bahamas) 5
by James St. John

Brachiopod in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 1
by James St. John

Interbedded fossiliferous limestones and shales (Kope Formation-Fairview Formation-Bellevue Limestone, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 8
by James St. John

Fossiliferous limestone (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 5
by James St. John

Mancos Shale badlands (Upper Cretaceous; Book Cliffs region, eastern Utah, USA) 2
by James St. John

Dixon Cave (Mammoth Cave National Park, Kentucky, USA) 2
by James St. John

Waldron Shale (Middle Silurian) (St. Paul Stone Quarry, St. Paul, Indiana, USA) 1
by James St. John

Plant fossil in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 25
by James St. John

Mudchip breccia in limestone (Boggs Limestone, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA) 5
by James St. John

Urosalpinx perrugata fossil gulf oyster drill snail shells (Caloosahatchee Formation, Upper Pliocene-Lower Pleistocene; gravel pit in southwestern Florida, USA)
by James St. John

Trepostome bryozoan (Grant Lake Formation, Upper Ordovician; south of Excello, Ohio, USA) 2
by James St. John

Monroe Dolomite (Silurian; Ohio, USA)
by James St. John

Bryozoan mass (Whitewater Formation, Upper Ordovician; Camden West roadcut, Preble County, Ohio, USA) 3
by James St. John

Lowellville Limestone (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 1
by James St. John

Putnam Hill Limestone (Middle Pennsylvanian; Old Riley Road Outcrop, Muskingum Co., Ohio, USA) 2
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 13
by James St. John

Fossiliferous limestone (Greenhorn Formation, Upper Cretaceous; Ponca State Park, Nebraska, USA) 1
by James St. John

Fossiliferous sandstone (Logan Formation, Lower Mississippian; Walhonding Road Outcrop, Knox County, Ohio, USA) 7
by James St. John

Platystrophia ponderosa (fossil brachiopod) (Grant Lake Formation, Upper Ordovician; south of Excello, Ohio, USA) 2
by James St. John

Oolitic ironstone (Brassfield Formation, Lower Silurian; Ohio Brush Creek roadcut, southern Ohio, USA) 4
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 47
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 1
by James St. John

Brachiopods and corals in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 2
by James St. John

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

Favositid coral in fossiliferous limestone (Columbus Limestone, Middle Devonian; Olentangy Indian Caverns, central Ohio, USA) 3
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Marblecliff Quarry, Hilliard, Ohio, USA) 1
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