fossiliferous

Ocean waves (New Providence Island, Bahamas)
by James St. John

Fossiliferous limestone with phylloidal algae (Putnam Hill Limestone, Middle Pennsylvanian; waste rock pile from old clay mine along Blunt Run, Muskingum Township, Muskingum County, Ohio, USA) 3
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 133
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 134
by James St. John

Glacial grooves from Pleistocene glaciation on Columbus Limestone (Middle Devonian) (Glacial Grooves State Park, Kelleys Island, Ohio, Lake Erie, USA) 5
by James St. John

Agnostus pisiformis fossil trilobites (Alum Shale Formation, upper Middle Cambrian; Andrarum, Scania, Sweden) 6
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 142
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 154
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 54
by James St. John

Leptaena fossil brachiopods in fossiliferous limestone (Middle Devonian; Olentangy River bank near Lazarus Run, Delaware County, Ohio, USA) 5
by James St. John

Upper Mercer Flint & Upper Mercer Limestone (Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 1
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 157
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 136
by James St. John

Fossiliferous phosphorite (Fish Scale Marker Bed, Meade Peak Member, Phosphoria Formation, Permian; Idaho, USA) 6
by James St. John

Zaphrentis phrygia fossil rugose coral (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 1
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Griggs Dam, Columbus, Ohio, USA) 2
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 141
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 143
by James St. John

Fossiliferous limestone & fossiliferous shale (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 18
by James St. John

Crinoid columnals in fossiliferous limestone (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) 3
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 148
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 152
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 130
by James St. John

Historic Entrance (Mammoth Cave, Kentucky, USA) 15
by James St. John

Teleoceras major (fossil barrel-bodied rhino) skull (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 2
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 145
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 128
by James St. John

Pottsville Group (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 13
by James St. John

Fossiliferous limestone (Gravel Point Formation, Middle Devonian; near South Point, west of Charlevoix, Michigan, USA) 1
by James St. John

Fossiliferous chert nodule in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 7
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Taylor & Bell Quarry, near Marble Cliff, Ohio, USA) 13
by James St. John

Fossiliferous volcanic tuff (Ash Hollow Formation, Miocene, 11.83 Ma; Ashfall Fossil Beds, Nebraska, USA) 9
by James St. John

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 3
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 146
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 147
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 153
by James St. John

Annularia stellata (fossil horsetail) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; Braidwood, Illinois, USA)
by James St. John

Fossiliferous sandstone (Vinton Member, Logan Formation, Lower Mississippian; Hanover Pit, Licking County, Ohio, USA) 12
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 137
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 139
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 155
by James St. John

Boggs Limestone (Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 4
by James St. John

Fossiliferous flint & fossiliferous limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2
by James St. John

Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 2
by James St. John

Agnostoid trilobite packstone (Alum Shale Formation, Upper Cambrian; southern Sweden) 5
by James St. John

Fossiliferous limestone with phylloidal algae (Putnam Hill Limestone, Middle Pennsylvanian; waste rock pile from old clay mine along Blunt Run, Muskingum Township, Muskingum County, Ohio, USA) 6
by James St. John

Ophiocrossota sp. (fossil brittle star) in fossiliferous sandy limestone (Santa Margarita Formation, Miocene; Lopez Lake area, San Luis Obispo County, California, USA) 2
by James St. John

Pudoproetus auriculatus fossil trilobite (Byer Sandstone, Lower Mississippian; Rt. 16 roadcut, 1.45 miles south of Granville, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 15
by James St. John

Stromatoporoid fragments (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 22
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) 5
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 7
by James St. John

Corals in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 7
by James St. John

Fossiliferous limestone with phylloidal algae (Putnam Hill Limestone, Middle Pennsylvanian; waste rock pile from old clay mine along Blunt Run, Muskingum Township, Muskingum County, Ohio, USA) 2
by James St. John

Ectenocrinus simplex fossil crinoids (Kope Formation, Upper Ordovician; Petersburg, Kentucky, USA) 1
by James St. John

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 156
by James St. John

Fossiliferous limestone (Leitchfield Formation, Upper Mississippian; Western Kentucky Parkway roadcut, southern side of Leitchfield, Kentucky, USA) 9
by James St. John

Encrinite (crinoidal limestone) (Ft. Payne Limestone, Lower Mississippian; Lake Cumberland, Kentucky, USA) 11
by James St. John

Agnostoid trilobite packstone (Alum Shale Formation, Upper Cambrian; southern Sweden) 3
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) 30
by James St. John