fossiliferous

Historic Entrance (Mammoth Cave, Kentucky, USA) 13
by James St. John

East River Valley & Gothic Mountain (Gunnison County, Colorado, USA) 4
by James St. John

Fossiliferous limestone slabs (derived from the upper Richmondian Stage, Upper Ordovician; Flat Fork, Caesar Creek Lake State Park, southwestern Ohio, USA)
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) 8
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) 3
by James St. John

Bandringa rayi (fossil shark) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) 3
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 102
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 107
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 114
by James St. John

Frosterley Marble (Great Limestone, Mississippian; Rogerley Quarry, England)
by James St. John

Silica Formation-Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 9
by James St. John

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 4
by James St. John

Brachiopods in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 7
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 105
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 123
by James St. John

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 6
by James St. John

Helicoprion ferrieri (fossil shark tooth whorl) (Skinner Ranch Formation, Lower Permian; Dugout Mountain, Brewster County, Texas, USA) 2
by James St. John

Fossiliferous chert nodule in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 4
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 78
by James St. John

Essexella asherae (fossil jellyfish) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) 1
by James St. John

Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 05
by James St. John

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 8
by James St. John

Stromatoporoid (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 26
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 116
by James St. John

Zebra limestone (Antelope Valley Limestone, Middle Ordovician; Meiklejohn Peak, near Beatty, Nevada, USA) 4
by James St. John

Oncolitic limestone (Wirrapowie Limestone, Lower Cambrian; Mernmerna railroad bridge dry creek cut, South Australia) 3
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 28
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 9
by James St. John

Mammut americanum (American mastodon) (Pleistocene; Ziegler Reservoir, Snowmass Village, Colorado, USA) 12
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 94
by James St. John

Essexella asherae (fossil jellyfish) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) 2
by James St. John

Fossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 3
by James St. John

Coquina (Quaternary; Cayo Costa Island, Florida, USA) 1
by James St. John

Fossiliferous chert nodules in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 2
by James St. John

Fossiliferous cannel coal (Upper Freeport Coal, Middle Pennsylvanian; Diamond Coal Mine, Linton, Ohio, USA) 4
by James St. John

Large favositid coral colony in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 1
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 9
by James St. John

Historic Entrance (Mammoth Cave, Kentucky, USA) 17
by James St. John

Fossiliferous limestone (Gravel Point Formation, Middle Devonian; near South Point, west of Charlevoix, Michigan, USA) 4
by James St. John

Stromatoporoid (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 28
by James St. John

Ferruginous fossiliferous flint (Boggs Member, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 3
by James St. John

Fossiliferous chert nodules in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 1
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 96
by James St. John

Fossiliferous mudshale (Hinton or Bluefield Formation, Upper Mississippian; Oakvale School Outcrop - Rt. 112 roadcut, Oakvale, West Virginia, USA) 5
by James St. John

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 12
by James St. John

Via Rail Canada # 6430 diesel locomotive (Gascons, Quebec, Canada) (23 or 24 July 1989) 2
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 117
by James St. John

Cliffs at Port Willunga
by Dietmar Down Under

Ferruginous fossiliferous flint (Boggs Member, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 6
by James St. John

Lafarge Marblehead Quarry (Marblehead Peninsula, Ohio, USA) 3
by James St. John

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 12
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 99
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 115
by James St. John

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 113
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 121
by James St. John

Fasciculiconcha knightii (fossil bivalve) (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 5
by James St. John

Crinoid columnals in fossiliferous limestone (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 2
by James St. John

Mammut americanum (American mastodon) (Pleistocene; Ziegler Reservoir, Snowmass Village, Colorado, USA) 34
by James St. John