fossiliferous

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

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 23
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 94
by James St. John

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

Fossiliferous dolostone (Bisher Formation, Middle Silurian; AA Highway roadcut northeast of Charters, Lewis County, Kentucky, USA) 4
by James St. John

Limestone (Morrill Hall, University of Nebraska at Lincoln)
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 75
by James St. John

Fusulinid foraminifera (Upper Paleozoic)
by James St. John

Crinoid stem in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 2
by James St. John

Agnostoid trilobite packstone (Alum Shale Formation, Upper Cambrian; southern Sweden) 1
by James St. John

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 16
by James St. John

Moellerina greenei (fossil charophyte oogonia) in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5
by James St. John

Syringoporid coral in dolostone (Schoolcraft Dolomite, Middle Silurian; Puffy Creek East outcrop, Garden Peninsula, Upper Peninsula of Michigan, USA)
by James St. John

Drepanura premesnili fossil trilobite tails in fossiliferous limestone (Kushan Formation, ~uppermost Middle Cambrian; Shandong Province, northeastern China) 3
by James St. John

Aviculopecten winchelli (fossil scallop) (Byer Sandstone, Lower Mississippian; Newark, Ohio, USA)
by James St. John

Crinoidal vuggy chert (Carboniferous; limestone quarry near Komsomolske, Ukraine) 1
by James St. John

Pure-Hickey # 4 oil well (Black Hand Gorge, Licking County, Ohio, USA)
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 50
by James St. John

Fossiliferous ferruginous sandstone (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 2
by James St. John

Fossiliferous limestone with chert nodules (lower Boggs Member, Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 6
by James St. John

Plant fossils (Cow Branch Formation, Upper Triassic; Pit B of Solite Quarry, near Eden, North Carolina, USA) 2
by James St. John

Teleoceras major (fossil barrel-bodied rhino) in volcanic tuff (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 26
by James St. John

Nautiloid in limestone (Fairview Formation, Upper Ordovician; Maysville West roadcut, Kentucky, USA)
by James St. John

Fossil wood impression & brachiopods in fossiliferous limestone (Lowellville Limestone, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2
by James St. John

Weathered fossiliferous flint (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 5
by James St. John

Fossiliferous ferruginous sandstone (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 3
by James St. John

Gravicalymene abbreviata fossil trilobite (Kope Formation, Upper Ordovician; Rt. 62-Rt. 68 roadcut, eastern side of Ripley, southern Brown County, southwestern Ohio, USA)
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 12
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 32
by James St. John

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

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 4
by James St. John

Fossiliferous dolostone (Rockford Limestone, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 12
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 29
by James St. John

"Turritella Agate" (partially chertified fossiliferous lacustrine limestone) (Laney Member, Green River Formation, Middle Eocene; North Barrel Springs Draw, south of Wamsutter, Wyoming, USA) 11
by James St. John

Brachiopod fossils in weathered limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 3
by James St. John

Helicoprion ferrieri (fossil shark tooth whorl) (Skinner Ranch Formation, Lower Permian; Dugout Mountain, Brewster County, Texas, USA) 3
by James St. John

South Fork John Day Wild and Scenic River
by BLM Oregon & Washington

Plant fossils (Cow Branch Formation, Upper Triassic; Pit B of Solite Quarry, near Eden, North Carolina, USA) 4
by James St. John

"Turritella Agate" (partially chertified fossiliferous lacustrine limestone) (Laney Member, Green River Formation, Middle Eocene; North Barrel Springs Draw, south of Wamsutter, Wyoming, USA) 9
by James St. John

Fossiliferous limestone (Gravel Point Formation, Middle Devonian; near South Point, west of Charlevoix, Michigan, USA) 9
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 10
by James St. John

Conchostracans in nonmarine black shale (Cow Branch Formation, Upper Triassic; Route 220 roadcut north of the Dan River, Rockingham County, North Carolina, USA) 2
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 5
by James St. John

South Fork John Day Wild and Scenic River
by BLM Oregon & Washington

East River (northern Gunnison County, Colorado, USA)
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 92
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 30
by James St. John

Anthracopupa ohioensis (fossil land snails) in fossiliferous nonmarine limestone (Monongahela Group, Upper Pennsylvanian; Narrows Run North roadcut, Belmont County, eastern Ohio, USA) 1
by James St. John

Columbus Limestone (Middle Devonian) (Hayden Falls, Dublin, Ohio, USA) 2
by James St. John

Silicified rugose corals in fossiliferous limestone (Rico Formation, Upper Pennsylvanian; Grand County, Utah, USA) 3
by James St. John

Frost-highlighted Leptaena brachiopod in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA)
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 9
by James St. John

Vugs with aragonite & calcite crystals in arenaceous, ferruginous, fossiliferous limestone (Vinton Member, Logan Formation, Lower Mississippian; Mt. Calvary Cemetery Outcrop - Rt. 13 roadcut, Heath, east-central Ohio, USA) 1
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 8
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 11
by James St. John

Fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 7
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Melvin Stone Quarry, near Williamsport, Pickaway County, Ohio, USA) 6
by James St. John

South Fork John Day Wild and Scenic River
by BLM Oregon & Washington

Fossiliferous limestone (Tin Mountain Limestone, Lower Mississippian; Funeral Mountains, Inyo County, California, USA) 1
by James St. John

Helicoprion sp. (fossil shark tooth whorl) (Phosphoria Formation, mid-Permian; Idaho, USA) 6
by James St. John