crinoid

Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 6
by James St. John

Brachiopod in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 1
by James St. John

At Mohamed's fossil store
by GOC53

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

Byer Sandstone (Lower Mississippian; State Farm Quarry, Newark, Ohio, USA) 2
by James St. John

Fossil colonial coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 13
by James St. John

Lower Mercer Shale-Lower Mercer Limestone-Middle Mercer Coal (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 5
by James St. John

Lafarge Marblehead Quarry (Marblehead Peninsula, Ohio, USA) 6
by James St. John

Ferruginous, pyritic-glauconitic dolostone (uppermost Boggs Member, Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 2
by James St. John

Fossil brachiopods in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 5
by James St. John

Sandstones (Lithopolis Member, Cuyahoga Formation, Lower Mississippian; Pine Quarry Park, Reynoldsburg, Ohio, USA) 1
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 13
by James St. John

Gastropod internal mold (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 1
by James St. John

DSCN0919
by Curtis Abert

soft coral, malabea west, wakatobi, 2018
by q.phia

Boggs Limestone (Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 11
by James St. John

Composita subtilita brachiopod in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA)
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Griggs Dam, Columbus, Ohio, USA) 1
by James St. John

Productid brachiopod in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 3
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 11
by James St. John

Brachiopods in limestone (Columbus Limestone, Middle Devonian; North Side Quarry, Kelleys Island, Lake Erie, Ohio, USA) 1
by James St. John

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

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 5
by James St. John

Euphemites fossil mollusc in limestone (Putnam Hill Limestone, Middle Pennsylvanian; Rt. 541 roadcut, west of Tunnel Hill, Coshocton County, Ohio, USA) 1
by James St. John

Solitary rugose coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 2
by James St. John

Anthracospirifer occiduus brachiopod in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 1
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 18
by James St. John

Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 8
by James St. John

Lower Mercer Shale-Lower Mercer Limestone-Middle Mercer Coal (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 3
by James St. John

Concretion in gray shale (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 6
by James St. John

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

Solitary rugose corals (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 12
by James St. John

Reworked concretion with crinoid holdfasts
by Kyle Hartshorn

Boggs Limestone (Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 9
by James St. John

Fossiliferous limestone (Silica Formation, Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 3
by James St. John

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

middle Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA)
by James St. John

Sandstones (Lithopolis Member, Cuyahoga Formation, Lower Mississippian; Pine Quarry Park, Reynoldsburg, Ohio, USA) 18
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 3
by James St. John

devil scorpionfish profile, tanjung lintea, wakatobi, 2018
by q.phia

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

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 22
by James St. John

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 3
by James St. John

Slade Formation over Renfro Member over Nada Member (Mississippian; Interstate-64 roadcut north-northeast of Morehead, Kentucky, USA) 1
by James St. John

Boggs Limestone (Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 1
by James St. John

At Mohamed's fossil store
by GOC53

Rockford Limestone over Maury Shale (Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 1
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 31
by James St. John

tasseled scorpionfish, treasure chest, wakatobi, 2018
by q.phia

Strophomenid brachiopod in fossiliferous limestone (Columbus Limestone, Middle Devonian; southern shore of Kelleys Island, Lake Erie, Ohio, USA)
by James St. John

Solitary rugose coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 1
by James St. John

Diorama of a Devonian seafloor 1
by James St. John

Columbus Limestone (Middle Devonian; The Wedge, Kelleys Island, Lake Erie, Ohio, USA) 1
by James St. John

Fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 39
by James St. John

upper Boggs Member (Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 8
by James St. John

Solitary rugose corals (Columbus Limestone, Middle Devonian; abandoned quarry, Kelleys Island, Lake Erie, Ohio, USA) 31
by James St. John

Brachiopods in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 3
by James St. John

Columbus Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 13
by James St. John

Ferruginous flint (Boggs Member, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 7
by James St. John

Solitary rugose corals (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 13
by James St. John