pennsylvanian

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Carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34212527062.html" target="_blank"><img src="http://farm3.static.flickr.com/2855/34212527062_8bf00cdf77_m.jpg" alt="" /></a><br />Carbonized plant fossils in siliciclastics (above the Lower Mercer Limestone, Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 4 / James St. John</span>

サイズ変更など

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

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/25060347562.html" target="_blank"><img src="http://farm2.static.flickr.com/1542/25060347562_b19a996b87_m.jpg" alt="" /></a><br />Posidonia fossil bivalve (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2 / James St. John</span>

サイズ変更など

Pebbly sandstone (Lee Formation, Pennsylvanian; Pine Mountain, Bell County, Kentucky, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49943193381.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49943193381_29d78af1f1_m.jpg" alt="" /></a><br />Pebbly sandstone (Lee Formation, Pennsylvanian; Pine Mountain, Bell County, Kentucky, USA) / James St. John</span>

サイズ変更など

Fossiliferous limestone with phylloidal algae (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/38466676131.html" target="_blank"><img src="http://farm5.static.flickr.com/4578/38466676131_4136063d62_m.jpg" alt="" /></a><br />Fossiliferous limestone with phylloidal algae (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/29536242568.html" target="_blank"><img src="http://farm2.static.flickr.com/1781/29536242568_5ae3565fdd_m.jpg" alt="" /></a><br />Overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Cannel City-Amburgy Coal Zone (between channel sandstones, Pikeville Formation, Middle Pennsylvanian; Jackson North roadcut, Breathitt County, Kentucky, USA) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/16383218084.html" target="_blank"><img src="http://farm8.static.flickr.com/7637/16383218084_4e8f39aa37_m.jpg" alt="" /></a><br />Cannel City-Amburgy Coal Zone (between channel sandstones, Pikeville Formation, Middle Pennsylvanian; Jackson North roadcut, Breathitt County, Kentucky, USA) 5 / James St. John</span>

サイズ変更など

Coshocton Flint (Upper Mercer Flint, Middle Pennsylvanian; Ohio, USA) 18
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/54102469243.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54102469243_358fca952f_m.jpg" alt="" /></a><br />Coshocton Flint (Upper Mercer Flint, Middle Pennsylvanian; Ohio, USA) 18 / James St. John</span>

サイズ変更など

Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 16
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/31089440991.html" target="_blank"><img src="http://farm6.static.flickr.com/5464/31089440991_dea9a6b112_m.jpg" alt="" /></a><br />Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 16 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 249
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49972760286.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49972760286_b0beb70435_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 249 / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Rico Formation, Upper Pennsylvanian; Grand County, Utah, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/35268853950.html" target="_blank"><img src="http://farm5.static.flickr.com/4055/35268853950_1254f63ea9_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Rico Formation, Upper Pennsylvanian; Grand County, Utah, USA) 3 / James St. John</span>

サイズ変更など

Ironstone concretion (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30226086427.html" target="_blank"><img src="http://farm2.static.flickr.com/1974/30226086427_07d1721f9d_m.jpg" alt="" /></a><br />Ironstone concretion (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Fossil lycopod log (Llewellyn Formation, Middle Pennsylvanian; Pioneer Tunnel Coal Mine, Ashland, Pennsylvania, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/8286945609.html" target="_blank"><img src="http://farm9.static.flickr.com/8208/8286945609_92cd8537ce_m.jpg" alt="" /></a><br />Fossil lycopod log (Llewellyn Formation, Middle Pennsylvanian; Pioneer Tunnel Coal Mine, Ashland, Pennsylvania, USA) / James St. John</span>

サイズ変更など

Limestone with pyrite (Upper Pennsylvanian; Weeping Water, Nebraska, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52268616873.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52268616873_150689b8e4_m.jpg" alt="" /></a><br />Limestone with pyrite (Upper Pennsylvanian; Weeping Water, Nebraska, USA) / James St. John</span>

サイズ変更など

Hydrothermal quartz crystal (Late Pennsylvanian to Permian; Coleman Quartz Mine, Arkansas, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/8290506395.html" target="_blank"><img src="http://farm9.static.flickr.com/8214/8290506395_a88cddeeab_m.jpg" alt="" /></a><br />Hydrothermal quartz crystal (Late Pennsylvanian to Permian; Coleman Quartz Mine, Arkansas, USA) 1 / James St. John</span>

サイズ変更など

Diorama of a Pennsylanian forest floor - Euphoberia
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/45550796482.html" target="_blank"><img src="http://farm2.static.flickr.com/1980/45550796482_52a3f81b30_m.jpg" alt="" /></a><br />Diorama of a Pennsylanian forest floor - Euphoberia / James St. John</span>

サイズ変更など

Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30382208504.html" target="_blank"><img src="http://farm6.static.flickr.com/5672/30382208504_48fc858c5a_m.jpg" alt="" /></a><br />Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 24
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52820787338.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52820787338_e61f2f420b_m.jpg" alt="" /></a><br />Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 24 / James St. John</span>

サイズ変更など

Middle Mercer Coal below the Lower Mercer Limestone (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32863796660.html" target="_blank"><img src="http://farm1.static.flickr.com/576/32863796660_8912d9839e_m.jpg" alt="" /></a><br />Middle Mercer Coal below the Lower Mercer Limestone (Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Eagle Valley Evaporite (Middle Pennsylvanian; near the town of Gypsum, Colorado, USA) 32
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51159353151.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51159353151_614ee20316_m.jpg" alt="" /></a><br />Eagle Valley Evaporite (Middle Pennsylvanian; near the town of Gypsum, Colorado, USA) 32 / James St. John</span>

サイズ変更など

Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, Wyoming, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51318129277.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51318129277_350904b9c5_m.jpg" alt="" /></a><br />Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, Wyoming, USA) 1 / James St. John</span>

サイズ変更など

Fossiliferous flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/33188549452.html" target="_blank"><img src="http://farm1.static.flickr.com/761/33188549452_8467e4ef12_m.jpg" alt="" /></a><br />Fossiliferous flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Conglomerate & sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/42511391565.html" target="_blank"><img src="http://farm1.static.flickr.com/847/42511391565_462111a284_m.jpg" alt="" /></a><br />Conglomerate & sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 13
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52812696357.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52812696357_dff0565fd3_m.jpg" alt="" /></a><br />Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 13 / James St. John</span>

サイズ変更など

Honeycomb-weathered sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23563721190.html" target="_blank"><img src="http://farm6.static.flickr.com/5655/23563721190_4453334f04_m.jpg" alt="" /></a><br />Honeycomb-weathered sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Fountain Formation (Pennsylvanian-Permian; Red Rocks Park, west of Denver, Colorado, USA) 163
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52540868925.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52540868925_b926341d76_m.jpg" alt="" /></a><br />Fountain Formation (Pennsylvanian-Permian; Red Rocks Park, west of Denver, Colorado, USA) 163 / James St. John</span>

サイズ変更など

Chalcedony-cemented flint breccia (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/54538356648.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54538356648_49f906e7ce_m.jpg" alt="" /></a><br />Chalcedony-cemented flint breccia (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Stigmaria (fossil tree root) (lower Pottsville Group, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40121216985.html" target="_blank"><img src="http://farm1.static.flickr.com/800/40121216985_0162b3d9fa_m.jpg" alt="" /></a><br />Stigmaria (fossil tree root) (lower Pottsville Group, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Boggs Member (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/36672517264.html" target="_blank"><img src="http://farm5.static.flickr.com/4375/36672517264_be1a0fed24_m.jpg" alt="" /></a><br />Boggs Member (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 16
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/33029637980.html" target="_blank"><img src="http://farm1.static.flickr.com/768/33029637980_19d39410f2_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 16 / James St. John</span>

サイズ変更など

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 47
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52840422967.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52840422967_8d32aa046d_m.jpg" alt="" /></a><br />Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 47 / James St. John</span>

サイズ変更など

Gov. Wolf Reminds Pennsylvanians that We Must Protect the ACA Amid COVID
by governortomwolf

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50398232461.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50398232461_a0cf66f551_m.jpg" alt="" /></a><br />Gov. Wolf Reminds Pennsylvanians that We Must Protect the ACA Amid COVID / governortomwolf</span>

サイズ変更など

Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 21
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/31167476026.html" target="_blank"><img src="http://farm6.static.flickr.com/5749/31167476026_ac7fce424c_m.jpg" alt="" /></a><br />Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 21 / James St. John</span>

サイズ変更など

Pottsville Group (Pennsylvanian; Dupler Pit, East Fultonham, Muskingum County, Ohio, USA) 6
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/45022054411.html" target="_blank"><img src="http://farm2.static.flickr.com/1924/45022054411_106c836b65_m.jpg" alt="" /></a><br />Pottsville Group (Pennsylvanian; Dupler Pit, East Fultonham, Muskingum County, Ohio, USA) 6 / James St. John</span>

サイズ変更など

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

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/29622322365.html" target="_blank"><img src="http://farm9.static.flickr.com/8779/29622322365_782533e571_m.jpg" alt="" /></a><br />Brachiopod in fossiliferous limestone (Skelley Member, Upper Pennsylvanian; Caldwell West outcrop, Ohio, USA) / James St. John</span>

サイズ変更など

Ayres Natural Bridge (west of Douglas, Wyoming, USA) 17
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49144200533.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49144200533_5c448f4eec_m.jpg" alt="" /></a><br />Ayres Natural Bridge (west of Douglas, Wyoming, USA) 17 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 334
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/54501479173.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54501479173_e6f9884086_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 334 / James St. John</span>

サイズ変更など

Diorama of a Pennsylanian seafloor - Worthenia gastropod, sponges, algae 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/44728177895.html" target="_blank"><img src="http://farm2.static.flickr.com/1977/44728177895_c0256aec27_m.jpg" alt="" /></a><br />Diorama of a Pennsylanian seafloor - Worthenia gastropod, sponges, algae 2 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 71
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/33299324341.html" target="_blank"><img src="http://farm1.static.flickr.com/660/33299324341_c627860877_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 71 / James St. John</span>

サイズ変更など

Hiking through Supai
by brewbooks

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/5182112148.html" target="_blank"><img src="http://farm5.static.flickr.com/4132/5182112148_0f019ac45a_m.jpg" alt="" /></a><br />Hiking through Supai / brewbooks</span>

サイズ変更など

Subsurface coal fire (near Centralia, Pennsylvania, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/8280893769.html" target="_blank"><img src="http://farm9.static.flickr.com/8224/8280893769_6f1bf6a04a_m.jpg" alt="" /></a><br />Subsurface coal fire (near Centralia, Pennsylvania, USA) / James St. John</span>

サイズ変更など

Ayres Natural Bridge (west of Douglas, Wyoming, USA) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49144687186.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49144687186_ee80297148_m.jpg" alt="" /></a><br />Ayres Natural Bridge (west of Douglas, Wyoming, USA) 5 / James St. John</span>

サイズ変更など

Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/22539057306.html" target="_blank"><img src="http://farm6.static.flickr.com/5697/22539057306_93e99438c8_m.jpg" alt="" /></a><br />Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 250
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51425525493.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51425525493_9a23fa21f0_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 250 / James St. John</span>

サイズ変更など

Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 17
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52815047519.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52815047519_4da782090c_m.jpg" alt="" /></a><br />Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; eastern Ohio, USA) 17 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 162
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/39202014775.html" target="_blank"><img src="http://farm5.static.flickr.com/4663/39202014775_c5342f7260_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 162 / James St. John</span>

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Acanthotelson stimpsoni (fossil shrimp) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/15342558987.html" target="_blank"><img src="http://farm4.static.flickr.com/3930/15342558987_75fd08a6bb_m.jpg" alt="" /></a><br />Acanthotelson stimpsoni (fossil shrimp) (Mazon Creek Lagerstätte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA) / James St. John</span>

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Fossil nautiloid shell with original iridescent nacre in fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51193002136.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51193002136_75655fb514_m.jpg" alt="" /></a><br />Fossil nautiloid shell with original iridescent nacre in fossiliferous asphaltic limestone (Buckhorn Asphalt, Middle Pennsylvanian; Buckhorn Asphalt Quarry, Oklahoma, USA) 3 / James St. John</span>

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Overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 9
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/28537362097.html" target="_blank"><img src="http://farm2.static.flickr.com/1766/28537362097_77aa21635e_m.jpg" alt="" /></a><br />Overturned crossbeds in sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 9 / James St. John</span>

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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) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30238569734.html" target="_blank"><img src="http://farm6.static.flickr.com/5731/30238569734_76061e68c7_m.jpg" alt="" /></a><br />Fossil charcoal in weathered coal (Bedford Coal, Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 3 / James St. John</span>

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Cherty limestones (Brush Creek Limestone, Upper Pennsylvanian; Helmick Bridge over Island Run, Morgan County, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/28687527475.html" target="_blank"><img src="http://farm9.static.flickr.com/8587/28687527475_c1df0069b2_m.jpg" alt="" /></a><br />Cherty limestones (Brush Creek Limestone, Upper Pennsylvanian; Helmick Bridge over Island Run, Morgan County, Ohio, USA) 2 / James St. John</span>

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Fossil ferns (Pennsylvanian; Coal Ridge Mine, Noble County, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49021583201.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49021583201_90a84f9d06_m.jpg" alt="" /></a><br />Fossil ferns (Pennsylvanian; Coal Ridge Mine, Noble County, Ohio, USA) 2 / James St. John</span>

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Weathered fossiliferous flint (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/44379200060.html" target="_blank"><img src="http://farm5.static.flickr.com/4904/44379200060_1f7dc6581c_m.jpg" alt="" /></a><br />Weathered fossiliferous flint (Vanport Flint, Middle Pennsylvanian; Flint Ridge, Ohio, USA) 2 / James St. John</span>

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

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23274431442.html" target="_blank"><img src="http://farm1.static.flickr.com/597/23274431442_0bb15e9916_m.jpg" alt="" /></a><br />Boggs Limestone (Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 4 / James St. John</span>

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Pennsylvanians Enjoy the Outdoors - Linda Stager - Tioga County
by governortomwolf

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51040512022.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51040512022_f91753f09d_m.jpg" alt="" /></a><br />Pennsylvanians Enjoy the Outdoors - Linda Stager - Tioga County / governortomwolf</span>

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Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/22377102200.html" target="_blank"><img src="http://farm1.static.flickr.com/667/22377102200_296c744331_m.jpg" alt="" /></a><br />Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, Ohio, USA) 1 / James St. John</span>

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Honeycomb-weathered sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23231286284.html" target="_blank"><img src="http://farm1.static.flickr.com/719/23231286284_f2e7f21b0e_m.jpg" alt="" /></a><br />Honeycomb-weathered sandstone (Dundee Sandstone, Middle Pennsylvanian; cliffs along Walnut Creek Bottom Road, west of Dundee, Ohio, USA) 4 / James St. John</span>

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Honeycomb weathered conglomeratic sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/29536606928.html" target="_blank"><img src="http://farm2.static.flickr.com/1827/29536606928_dcbfc60209_m.jpg" alt="" /></a><br />Honeycomb weathered conglomeratic sandstone (Sharon Formation, Lower Pennsylvanian; Virginia Kendall Ledges, Ohio, USA) 2 / James St. John</span>

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Crinoid stem in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32411383684.html" target="_blank"><img src="http://farm4.static.flickr.com/3737/32411383684_6e6b01f062_m.jpg" alt="" /></a><br />Crinoid stem in fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Rt. 16 roadcut near Trinway, Ohio, USA) 1 / James St. John</span>

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Polished flint spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51429215174.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51429215174_a91f592187_m.jpg" alt="" /></a><br />Polished flint spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 5 / James St. John</span>

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Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 263
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51582000218.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51582000218_376a0aeebe_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 263 / James St. John</span>

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