Wikimedi'Òc

Horizontal burrows in mudshale (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2 (24548006884).jpg - Ser Amantio di Nicolao

Sandstone over carbonaceous shale (Pottsville Group, Lower Pennsylvanian; Jackson North Outcrop, Jackson County, Ohio, USA) (45791711101).jpg - Ser Amantio di Nicolao

Argillaceous beds (Tymochtee Dolomite, Upper Silurian; South Bass Island, Lake Erie, Ohio, USA) 2 (48628206381).jpg - Ser Amantio di Nicolao

Shales (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut, northeast of Frazeysburg, Ohio, USA) 2 (12800294414).jpg - Ser Amantio di Nicolao

Sandstone-dominated overburden over "Middle Blue" shales (Vinton Member, Logan Formation, Lower Mississippian; Hanover Pit, Licking County, Ohio, USA) 9 (46908330744).jpg - Ser Amantio di Nicolao

Sandstone-dominated overburden over "Middle Blue" shales (Vinton Member, Logan Formation, Lower Mississippian; Hanover Pit, Licking County, Ohio, USA) 10 (47632552111).jpg - Ser Amantio di Nicolao

Black shale (Sunbury Shale, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 3 (35690240832).jpg - Ser Amantio di Nicolao

Fossil burrows in mudshale (Sunbury Shale, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 1 (46902472112).jpg - Ser Amantio di Nicolao

Black shale with burrows (Sunbury Shale, Lower Mississippian; Black Lick Creek, Reynoldsburg, Ohio) 3 (46500723265).jpg - Ser Amantio di Nicolao

Sandstone & mudshale (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 9 (49039633751).jpg - Ser Amantio di Nicolao

Sandstone & mudshale (Henley Member, Borden Formation, Lower Mississippian; Tener Mountain roadcut, southern Ohio, USA) 12 (49039621216).jpg - Ser Amantio di Nicolao

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 5 (40018746305).jpg - Ser Amantio di Nicolao

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 4 (40018756245).jpg - Ser Amantio di Nicolao

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 7 (40203990624).jpg - Ser Amantio di Nicolao

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 13 (27041401648).jpg - Ser Amantio di Nicolao

Carbonized plant fragments in gray mudshale (Cuyahoga Formation, Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 2 (27048662848).jpg - Ser Amantio di Nicolao

Raccoon Shale (Lower Mississippian; South Fork of the Licking River, Heath, Ohio, USA) (44443928574).jpg - Ser Amantio di Nicolao

Lingula permiana fossil brachiopod in shale (Washington Coal interval, Upper Pennsylvanian; Narrows Run South roadcut, Belmont County, Ohio, USA) 1.jpg - Ser Amantio di Nicolao

Lingula permiana fossil brachiopod in shale (Washington Coal interval, Upper Pennsylvanian; Narrows Run South roadcut, Belmont County, Ohio, USA) 2.jpg - Ser Amantio di Nicolao

Black shale (Ohio Shale, Upper Devonian; Lazarus Run, Delaware County, Ohio, USA) 2.jpg - Ser Amantio di Nicolao

Pyrite streak in black shale (Ohio Shale, Upper Devonian; Lazarus Run, Delaware County, Ohio, USA) 1.jpg - Ser Amantio di Nicolao