bivalve

Pentamerid brachiopods in dolostone (Silurian) 2
by James St. John

Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2
by James St. John

Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 4
by James St. John

Ironstone concretion (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 1
by James St. John

Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 15
by James St. John

Vermicularia fargoi (Fargo's worm snail) (Cayo Costa Island, Florida, USA) 2
by James St. John

Stromatoporoid in limestone (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 2
by James St. John

Dictyoclostus sp. (fossil brachiopod) (Byer Sandstone, Lower Mississippian; Chatham, Ohio, USA) 2
by James St. John

Solitary rugose corals (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 33
by James St. John

Weathered, oxidized pyrite (Columbus Limestone or Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1
by James St. John

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

Paupospira bowdeni (fossil snail) (Richmondian Stage, Upper Ordovician; Southgate Hill roadcut, Indiana, USA) 2
by James St. John

Borings in a Texigryphaea mucronata shell (Walnut Formation, Lower Cretaceous; Bell County, Texas, USA)
by James St. John

Stromatoporoid (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 17
by James St. John

Dictyoclostus sp. (fossil brachiopod) (Byer Sandstone, Lower Mississippian; Chatham, Ohio, USA) 3
by James St. John

Tellina radiata (sunrise tellin clam) (St. Thomas, Virgin Islands) 8
by James St. John

Leptaena sp. (fossil brachiopod) (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run, Delaware County, Ohio, USA)
by James St. John

NOAA Ocean Explorer: NOAA Ship Okeanos Explorer: INDEX 2012 “Gulf of Mexico”
by BOEM-OPA

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

Stromatoporoid (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 21
by James St. John

Brachiopod fossil in weathered limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 4
by James St. John

Crassostrea virginica (eastern oyster) encrusting a log (Cayo Costa Island, Florida, USA) 2
by James St. John

Mollusc shells on marine beach (Cayo Costa Island, Florida, USA) 23
by James St. John

Uintacrinus socialis (fossil crinoids in chalk) (Niobrara Formation, Upper Cretaceous; western Kansas, USA) 44
by James St. John

Tucetona pectinata (comb bittersweet clam) (St. Thomas, Virgin Islands) 19
by James St. John

Crocodilian footprint (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 15
by James St. John

Vermicularia knorii (Florida worm snail shells) (Sanibel Island, Florida, USA) 2
by James St. John

Uintacrinus socialis (fossil crinoids in chalk) (Niobrara Formation, Upper Cretaceous; western Kansas, USA) 28
by James St. John

Argopecten gibbus with encrusting barnacle (Atlantic calico scallop shell) (Sanibel Island, Florida, USA) 1
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Marblecliff Quarry, Hilliard, Ohio, USA) 2
by James St. John

Bivalve fossils (Stump Formation, Jurassic; Dinosaur National Monument, Utah, USA) 30
by James St. John

Tonicella lineata (lined red chiton) 2
by James St. John

Pleasant Valley Limestone Quarry (Muskingum County, Ohio, USA) 4
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 12
by James St. John

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

Tellina radiata (sunrise tellin clam) (St. Thomas, Virgin Islands) 6
by James St. John

Dosinia discus (disc dosinia clam shell) with naticid drillhole (Sanibel Island, Florida, USA) 1
by James St. John

Mollusc shells on marine beach (Cayo Costa Island, Florida, USA) 20
by James St. John

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 8
by James St. John

Scallops
by Gerry Dincher

Trichophycus venosum burrows (Liberty Formation or Whitewater Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 1
by James St. John

Texigryphaea mucronata (fossil oyster) (Walnut Formation, Lower Cretaceous; Bell County, Texas, USA) 1
by James St. John

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 9
by James St. John

Slickenlined normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 3
by James St. John

Mollusc shells on marine beach (Cayo Costa Island, Florida, USA) 12
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 6
by James St. John

The Chengjiang Lagerstätte and the Cambrian Explosion: New Discoveries from China about the Early Evolution of Life
by James St. John

Texigryphaea mucronata (fossil oyster) (Walnut Formation, Lower Cretaceous; Bell County, Texas, USA) 2
by James St. John

Spiriferid brachiopod (Solsville Shale, Middle Devonian; Morrisville North roadcut, Madison County, New York State, USA) 7
by James St. John

Oyster Day
by vastateparksstaff

Pentamerid brachiopods in dolostone (Silurian) 1
by James St. John

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

Stromatoporoid (Ashlock Formation, Upper Ordovician; Paint Lick Elementary School outcrop, Garrard County, Kentucky, USA) 27
by James St. John

Productid brachiopod in flint-bearing fossiliferous limestone (Upper Mercer Limestone, Middle Pennsylvanian; Nellie, Ohio, USA) 7
by James St. John

Mollusc shells on marine beach (Algiers Beach, Sanibel Island, Florida, USA) 2
by James St. John

Argopecten gibbus (Atlantic calico scallop shell) (Sanibel Island, Florida, USA) 5
by James St. John

Fossiliferous mudshale (Hinton or Bluefield Formation, Upper Mississippian; Oakvale School Outcrop - Rt. 112 roadcut, Oakvale, West Virginia, USA) 4
by James St. John

Leptaena richmondensis (fossil brachiopods) (Upper Ordovician; Brookville Causeway roadcut, Franklin County, Indiana, USA) 2
by James St. John

White fossiliferous chert nodule in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5
by James St. John