fossiliferous

Fustiglyphus trace fossil (Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 1
by James St. John

Corals in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 17
by James St. John

Plant fossil in claystone (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 9
by James St. John

Frost-highlighted fossiliferous limestone (Waynesville Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 5
by James St. John

Fossiliferous limestone (upper Perekhod Formation, upper Lower Cambrian; Ulakhan-Kyyry Taas section, southern side of the Lena River, across from At-Daban, Lena Pillars, eastern Siberia, Russia)
by James St. John

Black chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 2
by James St. John

Spirorbiform microconchids in fossiliferous nonmarine limestone (Monongahela Group, Upper Pennsylvanian; Narrows Run North roadcut, Belmont County, eastern Ohio, USA) 5
by James St. John

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

Glyptocrinus decadactylus coiled crinoid stem (Fairview Formation, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 3
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 5
by James St. John

Fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 3
by James St. John

Trilobite packstone (Alum Shale Formation, Upper Cambrian; Kinnekulle Outlier, Västergötland, Sweden) 18
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 6
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 33
by James St. John

Frost-highlighted fossiliferous limestone (Waynesville Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 4
by James St. John

Fossiliferous limestone (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 16
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 38
by James St. John

Grypania spiralis (Negaunee Iron-Formation, Paleoproterozoic, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 54
by James St. John

Mancos Shale badlands (Upper Cretaceous; near the town of Grand Junction, Colorado, USA) 5
by James St. John

Corals in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 10
by James St. John

Wild Dilly Pond (San Salvador Island, Bahamas) 3
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 45
by James St. John

Frost-highlighted fossiliferous limestone (Waynesville Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 3
by James St. John

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 13
by James St. John

Slickenlined normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 4
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 7
by James St. John

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

Fossiliferous limestones (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 29
by James St. John

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 6
by James St. John

Fossiliferous flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie West Outcrop, Coshocton County, Ohio, USA) 3
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Mohawk Dam emergency spillway, western Coshocton County, Ohio, USA) 3
by James St. John

Ferruginous chert (Boggs Member, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA)
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) 32
by James St. John

Sand-filled burrow in mudshale (Vinton Member, Logan Formation, Lower Mississippian; Mohawk Dam roadcut, northwest of Nellie, Ohio, USA) 4
by James St. John

Mammut americanum (American mastodon) (Pleistocene; Ziegler Reservoir, Snowmass Village, Colorado, USA) 6
by James St. John

Frost-highlighted fossiliferous limestone (Waynesville Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 11
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 7
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) 1
by James St. John

Mammut americanum (American mastodon) (Pleistocene; Ziegler Reservoir, Snowmass Village, Colorado, USA) 5
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 5
by James St. John

Normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2
by James St. John

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 18
by James St. John

Upper Mercer Limestone over Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1
by James St. John

Spiriferid brachiopod (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 4
by James St. John

Cupulocrinus polydactylus (fossil crinoid) (Liberty Formation, Upper Ordovician; Brookville area, Indiana, USA) 2
by James St. John

Elaeacrinus verneuili (fossil blastoid head) (Columbus Limestone, Middle Devonian; Ohio, USA) 2
by James St. John

Waldron Shale (Middle Silurian) (St. Paul Stone Quarry, St. Paul, Indiana, USA) 4
by James St. John

Fossiliferous limestone (Silica Formation, Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 2
by James St. John

Archaeocyathan limestone (Ajax Limestone, Lower Cambrian; Ajax Mine, South Australia) 36
by James St. John

Favositid coral in fossiliferous limestone (Columbus Limestone, Middle Devonian; Olentangy Indian Caverns, central Ohio, USA) 5
by James St. John

Fossiliferous limestone (Poverty Run Limestone, Lower Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 7
by James St. John

Frost-highlighted fossiliferous limestone (Waynesville Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 6
by James St. John

Hexagonaria percarinata (fossil coral) (Traverse Group, Middle Devonian; Michigan, USA) 1
by James St. John

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

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 16
by James St. John

Ferruginous limestone (Boggs Member, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 14
by James St. John

Brachiopod in fossiliferous limestone (Putnam Hill Limestone, Middle Pennsylvanian; Rt. 79 roadcut, Perry Township, Coshocton County, Ohio, USA) 1
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Mohawk Dam emergency spillway, western Coshocton County, Ohio, USA) 9
by James St. John

Interbedded fossiliferous limestones and shales (Kope Formation-Fairview Formation-Bellevue Limestone, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 9
by James St. John

Ceraurinus icarus (fossil trilobite) (Richmondian Stage, Upper Ordovician; Eaton, Ohio, USA) 2
by James St. John