Category:Pottsville Formation

Subcategories

This category has the following 27 subcategories, out of 27 total.

Media in category "Pottsville Formation"

The following 130 files are in this category, out of 130 total.

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  "Liesegang banding" in sandstone (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 2 (24510813588).jpg 4,000 × 2,958; 5.74 MB
  
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  "Sharon" Conglomerate (Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (37511464362).jpg 3,000 × 4,000; 4.39 MB
  
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  Acanthopecten carboniferous fossil scallop (Lower Mercer Shale, Pottsville Group, Middle Pennsylvanian; Berry Run, Flint Ridge, Ohio, USA) (22750576744).jpg 2,871 × 1,705; 4.06 MB
  
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  Almost overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 1 (41599061560).jpg 4,000 × 3,000; 5.1 MB
  
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  Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1 (30782330831).jpg 4,000 × 3,000; 5.31 MB
  
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  Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 6 (30235221423).jpg 4,000 × 3,000; 4.68 MB
  
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  Bituminous coal (Vandusen Coal, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 3 (33236930615).jpg 4,000 × 3,000; 5.7 MB
  
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  Black carbonaceous sandstone (lower Pottsville Group, Lower Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 1 (31125006192).jpg 3,210 × 1,937; 4.25 MB
  
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  Brachiopod in fossiliferous limestone (Lowellville Limestone, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (23275094323).jpg 4,000 × 3,000; 3.93 MB
  
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  Cannel coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1 (30551936340).jpg 3,081 × 2,297; 3.88 MB
  
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  Cannel coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 5 (30551881840).jpg 3,533 × 1,917; 3.77 MB
  
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  Cannel coal (Flint Ridge Coal, Middle Pennsylvanian; old cannel coal mine along Cooks Hill Road, Flint Ridge, Ohio, USA) 1 (23508171819).jpg 4,000 × 2,033; 3.14 MB
  
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  Carbonaceous shale (Pottsville Group, Lower Pennsylvanian; Jackson North Outcrop, Jackson County, Ohio, USA) 4 (44879077275).jpg 4,000 × 3,000; 7.06 MB
  
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  Carbonaceous shale (Pottsville Group, Lower Pennsylvanian; Jackson North Outcrop, Jackson County, Ohio, USA) 8 (44879048655).jpg 4,000 × 3,000; 7.96 MB
  
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  Carbonaceous shale (Pottsville Group, Lower Pennsylvanian; Jackson North Outcrop, Jackson County, Ohio, USA) 9 (45791704841).jpg 3,000 × 4,000; 6.24 MB
  
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  Carbonized fossil wood in sandstone (lower Pottsville Group, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (27143370358).jpg 3,063 × 2,392; 4.1 MB
  
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  Carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 1 (33986446120).jpg 4,000 × 3,000; 7.06 MB
  
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  Carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 8 (34370841425).jpg 4,000 × 3,000; 5.65 MB
  
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  Chert with weathering rind (Boggs Member, Pottsville Group, Pennsylvanian; Dillon Reservoir roadcut, Muskingum County, Ohio, USA) 1 (26313010941).jpg 2,898 × 2,327; 3.98 MB
  
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  Clast of siliciclastic sedimentary rock in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (37695425646).jpg 4,000 × 3,000; 5.55 MB
  
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  Clasts of siliciclastic sedimentary rock in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 4 (23890875148).jpg 4,000 × 3,000; 6.36 MB
  
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  Coal raft & fossil log in sandstone (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 2 (33218868685).jpg 3,778 × 2,998; 4.93 MB
  
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  Coiled cephalopod (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 7 (30865495617).jpg 3,999 × 2,715; 7.32 MB
  
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  Concretion with calcite-filled crack-and-heal fractures (Pottsville Group, Lower Pennsylvanian; Rt. 16 roadcut at the eastern end of Irish Ridge, Muskingum County, Ohio, USA) 1 (25885444073).jpg 3,623 × 2,530; 5.36 MB
  
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  Cross-bedded quartzose sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) (37093273043).jpg 4,000 × 3,000; 7.8 MB
  
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  Cross-bedded quartzose sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 1 (23231408344).jpg 4,000 × 3,000; 4.55 MB
  
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  Current-aligned carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 10 (33560060913).jpg 4,000 × 3,000; 6.09 MB
  
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  Current-aligned carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 3 (33528772934).jpg 4,000 × 3,000; 6.78 MB
  
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  Current-aligned carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 8 (33560078923).jpg 4,000 × 3,000; 6.15 MB
  
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  Eroded-out mudshale clast in quartz-pebble conglomerate ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (23891105408).jpg 4,000 × 3,000; 4.55 MB
  
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  Ferruginous limestone (Boggs Member, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 9 (42233613792).jpg 4,000 × 3,000; 7.26 MB
  
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  Fossil charcoal in weathered coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 5 (31906071795).jpg 2,436 × 2,262; 4.86 MB
  
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  Fossil plant stem in coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) (31533285300).jpg 2,215 × 2,148; 3.8 MB
  
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  Fossil plants in carbonaceous shale (top of Pottsville Formation, Middle Pennsylvanian; old coal mine ENE of St. Clair, eastern Pennsylvanian, USA) 1 (15251791316).jpg 4,938 × 3,384; 5.4 MB
  
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  Fossil wood (Lowellville Shale, Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2 (45080732874).jpg 3,651 × 2,653; 6.36 MB
  
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  Fossiliferous chert (Upper Mercer Flint, Middle Pennsylvanian; Nellie West Outcrop, Coshocton County, Ohio, USA) 1 (31882402546).jpg 2,329 × 2,527; 4.6 MB
  
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  Fossiliferous flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie West Outcrop, Coshocton County, Ohio, USA) 2 (31882423596).jpg 3,482 × 2,041; 5.06 MB
  
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  Fossiliferous flint (Upper Mercer Flint, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 6 (31147628952).jpg 2,326 × 1,536; 2.29 MB
  
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  Fossiliferous flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 4 (33188549452).jpg 3,117 × 2,583; 5.74 MB
  
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  Fossiliferous flint mass in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 1 (33216511971).jpg 3,760 × 2,462; 7.22 MB
  
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  Fossiliferous flint mass in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2 (33303148216).jpg 4,000 × 2,463; 7.41 MB
  
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  Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 11 (33188674322).jpg 4,000 × 3,000; 5.1 MB
  
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  Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 9 (32530075423).jpg 3,830 × 2,527; 7.42 MB
  
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  Fossiliferous limestone (Boggs Limestone, middle Pottsville Group, lower Middle Pennsylvanian; outcrop spanning Blunt Run, northern Muskingum County, eastern Ohio, USA) (15559339658).jpg 2,832 × 2,364; 1.61 MB
  
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  Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Clinton Furnace Road roadcut, south-southeast of Lyra, Ohio, USA) 3 (37257522730).jpg 3,000 × 4,000; 6.54 MB
  
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  Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 2 (33213574796).jpg 4,000 × 2,719; 4.21 MB
  
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  Fossiliferous limestone (Poverty Run Limestone, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 1 (32392561574).jpg 3,658 × 2,624; 4.23 MB
  
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  Fossiliferous shale (Lower Mercer Shale, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 1 (37068147930).jpg 4,000 × 3,000; 6.64 MB
  
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  Graded bedding in conglomerate & pebbly sandstone ("Sharon" Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (36833315464).jpg 4,000 × 3,000; 7.51 MB
  
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  Heavy mineral residue derived from sandstone (Pottsville Group, Middle Pennsylvanian; south of Bald Knob, Heath, Ohio, USA) (42369926322).jpg 3,537 × 993; 2.29 MB
  
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  Honeycomb weathered conglomeratic sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 1 (43359052552).jpg 4,000 × 3,000; 4.58 MB
  
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  Honeycomb weathering (Massillon Sandstone, Lower Pennsylvanian; ridgetop above Mohawk Dam, Coshocton County, Ohio, USA) 1 (33698336460).jpg 4,000 × 3,000; 7 MB
  
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  Honeycomb-weathered sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 5 (23776928051).jpg 4,000 × 3,000; 3.69 MB
  
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  Horizontal burrows in mudshale (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (25060454372).jpg 4,000 × 3,000; 4.65 MB
  
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  Intensely-burrowed shale (Pottsville Group, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 2 (37302329721).jpg 3,734 × 3,000; 7.73 MB
  
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  Intensely-burrowed shale (Pottsville Group, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 4 (36593089334).jpg 4,000 × 3,000; 5.99 MB
  
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  Ironstone (Pottsville Group, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 2 (40473322340).jpg 4,000 × 3,000; 5.99 MB
  
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  Ironstone concretion (Lower Mercer Ore, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 5 (26718140809).jpg 3,408 × 2,085; 2.82 MB
  
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  Ironstone in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (37724979321).jpg 3,566 × 2,991; 6.05 MB
  
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  Ironstone in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 5 (37069499433).jpg 4,000 × 3,000; 5.61 MB
  
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  Ironstone nodule conglomerate (Massillon Sandstone, Lower Pennsylvanian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) 1 (34329561091).jpg 3,000 × 2,923; 7.67 MB
  
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  Ironstone pebbles in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (23872167088).jpg 4,000 × 3,000; 6.27 MB
  
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  Lowellville Limestone (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (23901917345).jpg 4,000 × 3,000; 4.64 MB
  
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  Lowellville Shale (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (25084858571).jpg 4,000 × 3,000; 5.63 MB
  
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  Lower Mercer Limestone & Boggs Member (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 1 (37124879170).jpg 3,000 × 3,474; 5.19 MB
  
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  Lower Mercer Limestone (Middle Pennsylvanian; Clay Pit Road Outcrop, Muskingum County, Ohio, USA) 5 (32918741272).jpg 4,000 × 2,003; 5.39 MB
  
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  Massillon Sandstone (Lower Pennsylvanian; ridgetop above Mohawk Dam, Coshocton County, Ohio, USA) 1 (33925825452).jpg 3,000 × 3,682; 5.66 MB
  
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  Middle Mercer Coal (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 1 (27409671527).jpg 3,000 × 1,765; 4.46 MB
  
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  Middle Mercer Coal (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 2 (40473316300).jpg 4,000 × 3,000; 6.43 MB
  
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  Middle Mercer Coal (Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) (33216625911).jpg 4,000 × 3,000; 4.17 MB
  
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  Mississippian-Pennsylvanian unconformity ("Sharon" Conglomerate over Logan Formation; Jackson North roadcut, Ohio, USA) 16 (36815965994).jpg 4,000 × 3,000; 4.48 MB
  
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  Mudchip breccia in limestone (Boggs Limestone, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA) 4 (30608150954).jpg 2,798 × 2,485; 5.12 MB
  
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  Mudshale & ironstone clasts in quartz-pebble conglomerate ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 3 (23891100018).jpg 3,000 × 4,000; 5.85 MB
  
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  Mudshale clast in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 30 (23890878828).jpg 4,000 × 3,000; 5.3 MB
  
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  Mudshale clasts in pebbly sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 68 (37034724574).jpg 4,000 × 3,000; 5.75 MB
  
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  Mudshale clasts in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (37711962782).jpg 4,000 × 3,000; 6.54 MB
  
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  Mudshale clasts in sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 71 (40967747732).jpg 4,000 × 3,000; 5.08 MB
  
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  Mudshale clasts in sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 73 (39200827010).jpg 4,000 × 3,000; 5.09 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 1 (31828317562).jpg 3,732 × 2,097; 5.61 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 12 (31602716280).jpg 3,673 × 1,531; 4.32 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 13 (31602704560).jpg 2,361 × 1,670; 2.92 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 4 (31828298022).jpg 3,590 × 1,702; 4.81 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; outcrop near Nellie, Coshocton County, Ohio, USA) 22 (31908814845).jpg 3,126 × 1,847; 3.43 MB
  
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  Neuropteris (fossil seed fern leaf) (sandstone above "Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (40972447372).jpg 3,757 × 2,996; 6.03 MB
  
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  Normal fault in the Lowellville Limestone (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (25151074416).jpg 4,000 × 2,833; 3.93 MB
  
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  Oolitic limestone pebble in ferruginous quartz-pebble conglomerate (boulder in "Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 3 (37715580996).jpg 4,000 × 3,000; 7.6 MB
  
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  Overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 1 (42690228124).jpg 4,000 × 3,000; 14.74 MB
  
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  Plant fossils in sandstone (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) (44218715064).jpg 2,116 × 1,774; 2.86 MB
  
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  Pottsville Group (Pennsylvanian; Dupler Pit, East Fultonham, Muskingum County, Ohio, USA) 7 (45022055381).jpg 3,008 × 2,000; 4.47 MB
  
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  Productid brachiopod in flint-bearing fossiliferous limestone (Upper Mercer Limestone, Middle Pennsylvanian; Nellie, Ohio, USA) 2 (40095208412).jpg 3,323 × 2,883; 5.38 MB
  
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  Productid brachiopod in flint-bearing fossiliferous limestone (Upper Mercer Limestone, Middle Pennsylvanian; Nellie, Ohio, USA) 7 (40095150652).jpg 3,465 × 2,557; 5.62 MB
  
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  Productid brachiopod in limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 6 (38326681536).jpg 4,000 × 3,000; 6.57 MB
  
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  Putnam Hill Limestone (Middle Pennsylvanian; Mt. Zion Road Outcrop, Muskingum Co., Ohio, USA) 5 (33065420525).jpg 4,000 × 2,385; 4.51 MB
  
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  Pyrite in cannel coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) (30551896490).jpg 3,164 × 1,966; 3.83 MB
  
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  Pyrite-filled burrow (?) in limestone (Boggs Limestone, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA) 1 (31289445671).jpg 3,219 × 2,658; 3.97 MB
  
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  Pyritic limestone (Boggs Member, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA) 1 (31080732920).jpg 3,110 × 2,395; 5.02 MB
  
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  Pyritized charcoal in weathered coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1 (31533324910).jpg 3,142 × 2,596; 5.59 MB
  
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  Quartz sandstone pebble in conglomerate ("Sharon" Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (37542841091).jpg 4,000 × 3,000; 6.22 MB
  
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  Quartz-lined fossil vug in flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 1 (33216106391).jpg 3,061 × 2,062; 4.71 MB
  
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  Quartz-pebble conglomerate ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 38 (41073011382).jpg 2,144 × 1,852; 2.67 MB
  
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  Quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Toboso East railroad cut, Licking County, Ohio, USA) 5 (34352595586).jpg 4,000 × 3,000; 6.5 MB
  
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  Quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Toboso East railroad cut, Licking County, Ohio, USA) 6 (33552322054).jpg 2,174 × 2,398; 2.92 MB
  
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  Rip-up clasts in micaceous sandstone (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley LImestone Quarry, Muskingum County, Ohio, USA) 1 (44888330432).jpg 3,264 × 2,448; 6.05 MB
  
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  Rugose coral in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) (33634223344).jpg 2,433 × 1,588; 2.67 MB
  
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  Sandstone & conglomerate ("Sharon" Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 3 (30947200017).jpg 4,000 × 2,256; 6.57 MB
  
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  Sandstone & pebbly sandstone (Sharon Formation, Lower Pennsylvanian; Ice Box Cave, Virginia Kendall Ledges, Ohio, USA) 4 (44410261305).jpg 4,000 × 3,000; 7.28 MB
  
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  Sandstone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 11 (42233627192).jpg 4,000 × 3,000; 6 MB
  
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  Sandstone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 20 (45954212514).jpg 3,359 × 1,471; 3.06 MB
  
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  Sandstone (Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 6 (27409631747).jpg 4,000 × 3,000; 6.02 MB
  
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  Semi-cannel coal (Middle Mercer Coal, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) (32465027154).jpg 2,319 × 1,847; 2.69 MB
  
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  Shales & ironstone (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 2 (32431700283).jpg 3,000 × 4,000; 7.87 MB
  
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  Slickenlined normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1 (25516773320).jpg 4,000 × 3,000; 4.27 MB
  
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  Slickenlined normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 5 (43988535150).jpg 4,000 × 3,000; 7.01 MB
  
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  Slickenlined-fault surface in limestone (Upper Mercer Member, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 1 (37366731831).jpg 4,000 × 2,531; 5.5 MB
  
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  Slightly tilted sedimentary rocks (Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) (36727933542).jpg 4,000 × 2,734; 5.83 MB
  
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  Sphalerite in ironstone concretion (lower Pottsville Group, Lower Pennsylvanian; Irish Ridge East roadcut, near Trinway, Ohio, USA) 1 (37841827955).jpg 2,087 × 1,183; 1.94 MB
  
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  Stigmaria fossil root (underclay below the Bedford Coal, Middle Pennsylvanian; Tunnel Hill North Portal Outcrop, Coshocton County, Ohio, USA) 3 (30744493621).jpg 3,485 × 1,550; 4.04 MB
  
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  Stigmaria fossil root in sandstone (Pottsville Group, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 2 (41378374175).jpg 4,000 × 3,000; 6.46 MB
  
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  Straight-shelled nautiloid (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) (45804983341).jpg 4,000 × 3,000; 9.29 MB
  
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  Subtle folds (Lowellville Limestone-Lowellville Shale, Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) (30865459247).jpg 4,000 × 3,000; 6.76 MB
  
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  Upper Mercer Flint & Upper Mercer Limestone (Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA) 1 (17283558925).jpg 3,581 × 2,102; 4.09 MB
  
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  Upper Mercer Limestone over Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1 (30815184326).jpg 4,000 × 3,000; 5.6 MB
  
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  Upper Mercer Limestone-Upper Mercer Flint (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 2 (37318815276).jpg 4,000 × 2,884; 7.16 MB
  
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  Upper Mercer Limestone-Upper Mercer Flint (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 3 (37366069071).jpg 2,919 × 3,000; 6.8 MB
  
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  Weathered-out gray quartzite pebble from conglomerate ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (39200485210).jpg 2,895 × 1,799; 2.8 MB
  
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  Weathered-out gray quartzite pebble from conglomerate ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 2 (40116347285).jpg 3,314 × 2,364; 3.96 MB
  
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  Weathered-out quartz pebbles from conglomerate ("Sharon" Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 (37543273261).jpg 4,000 × 3,000; 7.99 MB
  
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  Weathered-out quartz pebbles from conglomerate ("Sharon" Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 4 (23690850478).jpg 4,000 × 3,000; 6.29 MB
  
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  Worlds End State Park Rock Garden 1.jpg 1,536 × 2,048; 1.47 MB
  
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  Zoophycos in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 2 (30849475745).jpg 4,000 × 3,000; 5.33 MB