devonian

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Aulopora microbuccinata corals encrusting a Paraspirifer bownockeri brachiopod (Silica Shale, Middle Devonian; Medusa Cement Quarry, Sylvania, 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/34815441404.html" target="_blank"><img src="http://farm5.static.flickr.com/4054/34815441404_9bb72811a2_m.jpg" alt="" /></a><br />Aulopora microbuccinata corals encrusting a Paraspirifer bownockeri brachiopod (Silica Shale, Middle Devonian; Medusa Cement Quarry, Sylvania, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Large carbonate concretion in black shale (Huron Shale Member, Ohio Shale, Upper Devonian; ravine just east of the Olentangy River, Highbanks Park, Lewis Center, 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/35463529160.html" target="_blank"><img src="http://farm5.static.flickr.com/4264/35463529160_a080d81934_m.jpg" alt="" /></a><br />Large carbonate concretion in black shale (Huron Shale Member, Ohio Shale, Upper Devonian; ravine just east of the Olentangy River, Highbanks Park, Lewis Center, Ohio, USA) 9 / James St. John</span>

サイズ変更など

Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas 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/49625806777.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625806777_a1ce34fbd7_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Celestite (Lucas County, 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/51999189274.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51999189274_2fdb8924df_m.jpg" alt="" /></a><br />Celestite (Lucas County, Ohio, USA) / James St. John</span>

サイズ変更など

Cone-in-cone limestone (likely an interbed from the Ohio Shale, Upper Devonian; creek bed of an Alum Creek tributary, northern Delaware County, 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/17148386506.html" target="_blank"><img src="http://farm8.static.flickr.com/7627/17148386506_535d492843_m.jpg" alt="" /></a><br />Cone-in-cone limestone (likely an interbed from the Ohio Shale, Upper Devonian; creek bed of an Alum Creek tributary, northern Delaware County, Ohio, USA) / James St. John</span>

サイズ変更など

Structurally-folded clayshales (Bedford Shale, Upper Devonian; Blendon Woods, Columbus, 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/35681888012.html" target="_blank"><img src="http://farm5.static.flickr.com/4214/35681888012_ab73bb26c1_m.jpg" alt="" /></a><br />Structurally-folded clayshales (Bedford Shale, Upper Devonian; Blendon Woods, Columbus, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Symmetrical ripple marks (Berea Sandstone, Upper Devonian-Lower Mississippian; Blendon Woods Park, Columbus, 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/35803048116.html" target="_blank"><img src="http://farm5.static.flickr.com/4278/35803048116_78b7924575_m.jpg" alt="" /></a><br />Symmetrical ripple marks (Berea Sandstone, Upper Devonian-Lower Mississippian; Blendon Woods Park, Columbus, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Fenite (Late Devonian; Selsurt Mountain, Kola Peninsula, Russia) 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/50675019267.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50675019267_43e053d638_m.jpg" alt="" /></a><br />Fenite (Late Devonian; Selsurt Mountain, Kola Peninsula, Russia) 2 / James St. John</span>

サイズ変更など

Emeralds in pegmatitic granite (Crabtree Pegmatite, Devonian; Crabtree Mountain, Mitchell County, North Carolina, 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/25144472748.html" target="_blank"><img src="http://farm5.static.flickr.com/4642/25144472748_96af72dc49_m.jpg" alt="" /></a><br />Emeralds in pegmatitic granite (Crabtree Pegmatite, Devonian; Crabtree Mountain, Mitchell County, North Carolina, USA) / James St. John</span>

サイズ変更など

Sponge reef
by Kyle Hartshorn

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/14416285179.html" target="_blank"><img src="http://farm4.static.flickr.com/3876/14416285179_a234178a9c_m.jpg" alt="" /></a><br />Sponge reef / Kyle Hartshorn</span>

サイズ変更など

Stylolite in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/28304177128.html" target="_blank"><img src="http://farm1.static.flickr.com/947/28304177128_9a22796a00_m.jpg" alt="" /></a><br />Stylolite in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 6 / James St. John</span>

サイズ変更など

Diorama of a Devonian seafloor 11
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/45623880691.html" target="_blank"><img src="http://farm2.static.flickr.com/1914/45623880691_59afc7aac4_m.jpg" alt="" /></a><br />Diorama of a Devonian seafloor 11 / James St. John</span>

サイズ変更など

Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51782227524.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51782227524_7b1fb9f364_m.jpg" alt="" /></a><br />Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Muscovite mica & biotite mica derived from pegmatitic granite (Ruggles Pegmatite, Devonian; Ruggles Pegmatite Mine, New Hampshire, 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/8291623644.html" target="_blank"><img src="http://farm9.static.flickr.com/8084/8291623644_8437c145a4_m.jpg" alt="" /></a><br />Muscovite mica & biotite mica derived from pegmatitic granite (Ruggles Pegmatite, Devonian; Ruggles Pegmatite Mine, New Hampshire, USA) 1 / James St. John</span>

サイズ変更など

Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, 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/48335917016.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48335917016_4d00da2fde_m.jpg" alt="" /></a><br />Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 16 / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51789048995.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51789048995_13a8e73eda_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) / James St. John</span>

サイズ変更など

Tiktaalik roseae (fish to amphibian transitional fossil) (Fram Formation, Upper Devonian; Ellesmere Island, Arctic Canada) 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/49755646886.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49755646886_83d7e61315_m.jpg" alt="" /></a><br />Tiktaalik roseae (fish to amphibian transitional fossil) (Fram Formation, Upper Devonian; Ellesmere Island, Arctic Canada) 2 / James St. John</span>

サイズ変更など

Delaware Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, 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/42188937001.html" target="_blank"><img src="http://farm1.static.flickr.com/912/42188937001_c6d9dbe898_m.jpg" alt="" /></a><br />Delaware Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Eclogite (Late Silurian to Early Devonian, ~400-423 Ma; Nordfjord area, Sogn og Fjordane County, Norway) 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/14911296258.html" target="_blank"><img src="http://farm4.static.flickr.com/3881/14911296258_472ee07433_m.jpg" alt="" /></a><br />Eclogite (Late Silurian to Early Devonian, ~400-423 Ma; Nordfjord area, Sogn og Fjordane County, Norway) 4 / James St. John</span>

サイズ変更など

Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, 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/48336064062.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48336064062_a114885cf2_m.jpg" alt="" /></a><br />Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 17 / James St. John</span>

サイズ変更など

Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, 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/51318867031.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51318867031_a389f1ddeb_m.jpg" alt="" /></a><br />Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, Wyoming, USA) 5 / James St. John</span>

サイズ変更など

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 125
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/48541510982.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48541510982_8c11553e1a_m.jpg" alt="" /></a><br />Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 125 / James St. John</span>

サイズ変更など

Kimberlite (Indian Guide Kimberlite Field, Devonian; Iron Mountain Kimberlite District, Wyoming, USA) 8
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/51436524237.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51436524237_983a613c5e_m.jpg" alt="" /></a><br />Kimberlite (Indian Guide Kimberlite Field, Devonian; Iron Mountain Kimberlite District, Wyoming, USA) 8 / James St. John</span>

サイズ変更など

Ephedra sp. (Mormon tea) (Canyon de Chelly, Arizona, 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/51959684951.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51959684951_81a53a68ea_m.jpg" alt="" /></a><br />Ephedra sp. (Mormon tea) (Canyon de Chelly, Arizona, USA) 1 / James St. John</span>

サイズ変更など

Symphyotrichum elliottii (Elliott's aster)
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/53477227178.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53477227178_3464e64863_m.jpg" alt="" /></a><br />Symphyotrichum elliottii (Elliott's aster) / James St. John</span>

サイズ変更など

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, 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/51793907727.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51793907727_736ac3ff56_m.jpg" alt="" /></a><br />Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Reflections off Lake Devo
by Czar Hey

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/46314727234.html" target="_blank"><img src="http://farm8.static.flickr.com/7877/46314727234_62a87c31a5_m.jpg" alt="" /></a><br />Reflections off Lake Devo / Czar Hey</span>

サイズ変更など

Grigio Carnico Marble (limestone with calcite veins) (Middle Devonian; Italian Alps) 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/41827068831.html" target="_blank"><img src="http://farm1.static.flickr.com/957/41827068831_18f66c6d03_m.jpg" alt="" /></a><br />Grigio Carnico Marble (limestone with calcite veins) (Middle Devonian; Italian Alps) 3 / James St. John</span>

サイズ変更など

Porphyritic diabase (Cape Ann, Massachusetts, 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/51620684643.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51620684643_b8e6ec80a6_m.jpg" alt="" /></a><br />Porphyritic diabase (Cape Ann, Massachusetts, USA) 6 / James St. John</span>

サイズ変更など

Hillsboro Sandstone (Lower Devonian; northwest of Sinking Spring, 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/48950649071.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48950649071_f3ab26af9f_m.jpg" alt="" /></a><br />Hillsboro Sandstone (Lower Devonian; northwest of Sinking Spring, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/42132026072.html" target="_blank"><img src="http://farm1.static.flickr.com/832/42132026072_5f8e7b2ae3_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5 / James St. John</span>

サイズ変更など

Diorite (Devonian; Hulls Cove, Mt. Desert Island, Maine, 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/50593018067.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50593018067_6049ed616f_m.jpg" alt="" /></a><br />Diorite (Devonian; Hulls Cove, Mt. Desert Island, Maine, USA) 5 / James St. John</span>

サイズ変更など

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 62
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/48541478807.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48541478807_32277ee1ba_m.jpg" alt="" /></a><br />Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 62 / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone; Middle Devonian; 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/41448587384.html" target="_blank"><img src="http://farm1.static.flickr.com/910/41448587384_4a851abe9d_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone; Middle Devonian; Ohio, USA) 1 / James St. John</span>

サイズ変更など

Araucaria mirabilis (fossil cone) (Jurassic; Argentina) 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/54525929995.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54525929995_d97a87d27d_m.jpg" alt="" /></a><br />Araucaria mirabilis (fossil cone) (Jurassic; Argentina) 5 / James St. John</span>

サイズ変更など

Coeymans Formation over Manlius Formation
by Kyle Hartshorn

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/14416321887.html" target="_blank"><img src="http://farm6.static.flickr.com/5577/14416321887_e658c57f99_m.jpg" alt="" /></a><br />Coeymans Formation over Manlius Formation / Kyle Hartshorn</span>

サイズ変更など

Cosmaspis transversa (Beartooth Butte Formation, Lower Devonian; Cottonwood Canyon, east of Lovell, Wyoming, 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/33446628334.html" target="_blank"><img src="http://farm3.static.flickr.com/2851/33446628334_a1d7295903_m.jpg" alt="" /></a><br />Cosmaspis transversa (Beartooth Butte Formation, Lower Devonian; Cottonwood Canyon, east of Lovell, Wyoming, USA) 4 / James St. John</span>

サイズ変更など

Slickenlined fault surface (Roberts Mountain Thrust Fault; near Cortez Gold Mine, Nevada, 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/41256583604.html" target="_blank"><img src="http://farm1.static.flickr.com/979/41256583604_f9dae75c56_m.jpg" alt="" /></a><br />Slickenlined fault surface (Roberts Mountain Thrust Fault; near Cortez Gold Mine, Nevada, USA) / James St. John</span>

サイズ変更など

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, 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/51794981093.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51794981093_94d03cb95c_m.jpg" alt="" /></a><br />Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Kimberlite (Arkhangelskaya Pipe, Late Devonian; Arkhangelsk Region, Russia) 11
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/50563391043.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50563391043_c46a89aff2_m.jpg" alt="" /></a><br />Kimberlite (Arkhangelskaya Pipe, Late Devonian; Arkhangelsk Region, Russia) 11 / James St. John</span>

サイズ変更など

Kimberlite (Snegurochka Pipe, Late Devonian; Arkhangelsk Region, Russia) 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/50599992706.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50599992706_60479c67f3_m.jpg" alt="" /></a><br />Kimberlite (Snegurochka Pipe, Late Devonian; Arkhangelsk Region, Russia) 1 / James St. John</span>

サイズ変更など

White fossiliferous chert in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/40375981230.html" target="_blank"><img src="http://farm1.static.flickr.com/970/40375981230_85958deea1_m.jpg" alt="" /></a><br />White fossiliferous chert in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 199
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/48541564772.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48541564772_f1fb9a1bcd_m.jpg" alt="" /></a><br />Glacial grooves on limestone (Kelleys Island, Lake Erie, Ohio, USA) 199 / James St. John</span>

サイズ変更など

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 28
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/32637900524.html" target="_blank"><img src="http://farm3.static.flickr.com/2950/32637900524_56338f7afe_m.jpg" alt="" /></a><br />Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 28 / James St. John</span>

サイズ変更など

Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, 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/41314988765.html" target="_blank"><img src="http://farm1.static.flickr.com/824/41314988765_2f7866ccf8_m.jpg" alt="" /></a><br />Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, USA) 2 / James St. John</span>

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Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, 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/32652213693.html" target="_blank"><img src="http://farm1.static.flickr.com/741/32652213693_1f32f0908e_m.jpg" alt="" /></a><br />Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 9 / James St. John</span>

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Hillsboro Sandstone (Lower Devonian; northwest of Sinking Spring, 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/48950648901.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48950648901_4829edb88f_m.jpg" alt="" /></a><br />Hillsboro Sandstone (Lower Devonian; northwest of Sinking Spring, Ohio, USA) 4 / James St. John</span>

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Moellerina greenei (fossil charophyte oogonia) in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/44664765240.html" target="_blank"><img src="http://farm8.static.flickr.com/7822/44664765240_9f09da309b_m.jpg" alt="" /></a><br />Moellerina greenei (fossil charophyte oogonia) in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 6 / James St. John</span>

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Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 12
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/32652046023.html" target="_blank"><img src="http://farm4.static.flickr.com/3927/32652046023_3cd94ea974_m.jpg" alt="" /></a><br />Brachiopods in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 12 / James St. John</span>

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Cladoselache fyleri (fossil shark) (Cleveland Shale Member, Ohio Shale, Upper Devonian; Brooklyn, 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/33699470716.html" target="_blank"><img src="http://farm3.static.flickr.com/2916/33699470716_40f41a796a_m.jpg" alt="" /></a><br />Cladoselache fyleri (fossil shark) (Cleveland Shale Member, Ohio Shale, Upper Devonian; Brooklyn, Ohio, USA) 2 / James St. John</span>

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Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/42131990552.html" target="_blank"><img src="http://farm1.static.flickr.com/960/42131990552_c7ca7567ce_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 9 / James St. John</span>

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Gabbro-diorite unit (Cadillac Mountain Intrusive Complex, Early Devonian, 418 Ma; Hulls Cove, Mt. Desert Island, Maine, 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/50606091416.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50606091416_3980e03391_m.jpg" alt="" /></a><br />Gabbro-diorite unit (Cadillac Mountain Intrusive Complex, Early Devonian, 418 Ma; Hulls Cove, Mt. Desert Island, Maine, USA) 4 / James St. John</span>

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Phacops rana crassituberculata (fossil trilobites) (Silica Formation, Middle Devonian; quarry northwest of Paulding, 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/48328205351.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48328205351_65d47ced0c_m.jpg" alt="" /></a><br />Phacops rana crassituberculata (fossil trilobites) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 9 / James St. John</span>

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Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/28306324468.html" target="_blank"><img src="http://farm1.static.flickr.com/961/28306324468_bd5b05eb17_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3 / James St. John</span>

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Eclogite (Late Silurian to Early Devonian, ~400-423 Ma; Nordfjord area, Sogn og Fjordane County, Norway) 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/15074864366.html" target="_blank"><img src="http://farm4.static.flickr.com/3870/15074864366_b55548a77a_m.jpg" alt="" /></a><br />Eclogite (Late Silurian to Early Devonian, ~400-423 Ma; Nordfjord area, Sogn og Fjordane County, Norway) 2 / James St. John</span>

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Stylolite in limestone (Middle Devonian; quarry northwest of Paulding, 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/48373153431.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48373153431_0b584d8ecd_m.jpg" alt="" /></a><br />Stylolite in limestone (Middle Devonian; quarry northwest of Paulding, Ohio, USA) 9 / James St. John</span>

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New Albany Shale (Upper Devonian; MacDonald Knob Outcrop, Bullitt County, Kentucky, USA) 8
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/45901850081.html" target="_blank"><img src="http://farm5.static.flickr.com/4827/45901850081_d57603821d_m.jpg" alt="" /></a><br />New Albany Shale (Upper Devonian; MacDonald Knob Outcrop, Bullitt County, Kentucky, USA) 8 / James St. John</span>

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Structurally-folded clayshales (Bedford Shale, Upper Devonian; Blendon Woods, Columbus, Ohio, USA) 4a
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/35850852885.html" target="_blank"><img src="http://farm5.static.flickr.com/4264/35850852885_427ffb57f3_m.jpg" alt="" /></a><br />Structurally-folded clayshales (Bedford Shale, Upper Devonian; Blendon Woods, Columbus, Ohio, USA) 4a / James St. John</span>

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Looking down the Indian Ladder Trail stairs
by Kyle Hartshorn

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/14416236358.html" target="_blank"><img src="http://farm4.static.flickr.com/3916/14416236358_280f9540eb_m.jpg" alt="" /></a><br />Looking down the Indian Ladder Trail stairs / Kyle Hartshorn</span>

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Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, 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/42169216332.html" target="_blank"><img src="http://farm1.static.flickr.com/825/42169216332_dbdaabcedf_m.jpg" alt="" /></a><br />Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, USA) 3 / James St. John</span>

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