silicification

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Fossiliferous chert (Chatham, Ohio, USA) 1
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51206913520.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51206913520_c4abd5d9cc_m.jpg" alt="" /></a><br />Fossiliferous chert (Chatham, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Fossiliferous chert (Chatham, 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/51206615029.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51206615029_c12f565ec4_m.jpg" alt="" /></a><br />Fossiliferous chert (Chatham, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Silicified rugose coral (Columbus Limestone, Middle Devonian; Mt. Tabor, 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/52273684896.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52273684896_759675268a_m.jpg" alt="" /></a><br />Silicified rugose coral (Columbus Limestone, Middle Devonian; Mt. Tabor, Ohio, USA) / James St. John</span>

サイズ変更など

Silicified-geodized spiriferid brachiopod with spiral brachidium 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/50697624507.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50697624507_6a87680b2f_m.jpg" alt="" /></a><br />Silicified-geodized spiriferid brachiopod with spiral brachidium 1 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (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/45582227005.html" target="_blank"><img src="http://farm5.static.flickr.com/4808/45582227005_8eaffb1c07_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/45582217695.html" target="_blank"><img src="http://farm8.static.flickr.com/7824/45582217695_8190e6bcaa_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 10
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/51011092771.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011092771_84b6e2f4ba_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 10 / James St. John</span>

サイズ変更など

Stylolite & silicified rugose coral in dolostone 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/52879514644.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52879514644_68973cde69_m.jpg" alt="" /></a><br />Stylolite & silicified rugose coral in dolostone 2 / James St. John</span>

サイズ変更など

Silicified-geodized spiriferid brachiopod with spiral brachidium 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/50697624877.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50697624877_772495efd0_m.jpg" alt="" /></a><br />Silicified-geodized spiriferid brachiopod with spiral brachidium 2 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 7
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/45582200005.html" target="_blank"><img src="http://farm5.static.flickr.com/4884/45582200005_26646eecc3_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 7 / James St. John</span>

サイズ変更など

Furcaster paleozoicus fossil brittle star (Kaub Formation, Hunsrück Slate Group, Lower Devonian; Budenbach area, western Germany) 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/8474368510.html" target="_blank"><img src="http://farm9.static.flickr.com/8525/8474368510_5aed2e4087_m.jpg" alt="" /></a><br />Furcaster paleozoicus fossil brittle star (Kaub Formation, Hunsrück Slate Group, Lower Devonian; Budenbach area, western Germany) 1 / James St. John</span>

サイズ変更など

Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, 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/51319874020.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51319874020_5d4796a137_m.jpg" alt="" /></a><br />Cycadella sp. (fossil cycad) (Morrison Formation, Upper Jurassic; Freezeout Hills, Wyoming, USA) 4 / 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) 14
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/49625013463.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625013463_91bac30cbb_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 14 / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/40371834340.html" target="_blank"><img src="http://farm1.static.flickr.com/952/40371834340_3358aa92fd_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 18 / James St. John</span>

サイズ変更など

Silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/45582178815.html" target="_blank"><img src="http://farm8.static.flickr.com/7888/45582178815_a936d46244_m.jpg" alt="" /></a><br />Silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Silicified rugose coral 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/52878771947.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52878771947_1428ae8941_m.jpg" alt="" /></a><br />Silicified rugose coral 1 / James St. John</span>

サイズ変更など

Stigmaria fossil root (Newark, 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/52673860844.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52673860844_ca1b9cc5cb_m.jpg" alt="" /></a><br />Stigmaria fossil root (Newark, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Hydrothermal veins & argillic zone alteration of wall rock (Orphan Boy Mine, Butte, Montana, 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/51034476042.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51034476042_8a282816ca_m.jpg" alt="" /></a><br />Hydrothermal veins & argillic zone alteration of wall rock (Orphan Boy Mine, Butte, Montana, USA) 4 / James St. John</span>

サイズ変更など

Agatized coral (Tertiary; Withlacoochee River, Georgia, 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/54563513407.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54563513407_579db0f174_m.jpg" alt="" /></a><br />Agatized coral (Tertiary; Withlacoochee River, Georgia, USA) 2 / James St. John</span>

サイズ変更など

Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; northwestern 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/52028485279.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52028485279_1d0085ae10_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; northwestern Ohio, USA) 1 / 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) 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/49625801787.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625801787_d6d4c95407_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 13 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (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/45582209305.html" target="_blank"><img src="http://farm5.static.flickr.com/4861/45582209305_1c1aaa2170_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5 / James St. John</span>

サイズ変更など

Furcaster paleozoicus fossil brittle star (Kaub Formation, Hunsrück Slate Group, Lower Devonian; Budenbach area, western Germany) 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/8473279467.html" target="_blank"><img src="http://farm9.static.flickr.com/8230/8473279467_fcf32825df_m.jpg" alt="" /></a><br />Furcaster paleozoicus fossil brittle star (Kaub Formation, Hunsrück Slate Group, Lower Devonian; Budenbach area, western Germany) 2 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 7
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/51010385308.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51010385308_980efb7233_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 7 / 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

Silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/45771923664.html" target="_blank"><img src="http://farm5.static.flickr.com/4834/45771923664_6d838ea89a_m.jpg" alt="" /></a><br />Silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Partially silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/41282399475.html" target="_blank"><img src="http://farm1.static.flickr.com/969/41282399475_df57401879_m.jpg" alt="" /></a><br />Partially silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) / James St. John</span>

サイズ変更など

Chalcedonized gastropods , Cretaceous
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/8465363428.html" target="_blank"><img src="http://farm9.static.flickr.com/8241/8465363428_1d64b24a80_m.jpg" alt="" /></a><br />Chalcedonized gastropods , Cretaceous / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 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/42178857251.html" target="_blank"><img src="http://farm1.static.flickr.com/825/42178857251_6c780e4092_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 11 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51011195577.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011195577_4611925b89_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 8 / James St. John</span>

サイズ変更など

Fossiliferous chert (Chatham, 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/51206615144.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51206615144_07041f9556_m.jpg" alt="" /></a><br />Fossiliferous chert (Chatham, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Dactylioceras commune (fossil ammonite) (Whitby Formation, Lower Jurassic; Yorkshire coast, England) 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/53675618347.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53675618347_c498cff419_m.jpg" alt="" /></a><br />Dactylioceras commune (fossil ammonite) (Whitby Formation, Lower Jurassic; Yorkshire coast, England) 5 / James St. John</span>

サイズ変更など

Silicified favositid coral (Paleozoic) 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/53845226605.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53845226605_f64d47a334_m.jpg" alt="" /></a><br />Silicified favositid coral (Paleozoic) 1 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (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/45771944224.html" target="_blank"><img src="http://farm8.static.flickr.com/7852/45771944224_4d455d4974_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 6 / James St. John</span>

サイズ変更など

Araucaria elongata (fossil cone) (Jurassic; Argentina)
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/49021443726.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49021443726_9f30f7ffe9_m.jpg" alt="" /></a><br />Araucaria elongata (fossil cone) (Jurassic; Argentina) / 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) 15
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/49625013093.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625013093_db6cfc0181_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 15 / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, 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/35614606392.html" target="_blank"><img src="http://farm5.static.flickr.com/4033/35614606392_540028befc_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 1 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51011194852.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011194852_d99cfe9fea_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 9 / James St. John</span>

サイズ変更など

Argillic zone alteration & hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51010381618.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51010381618_bca33ef143_m.jpg" alt="" /></a><br />Argillic zone alteration & hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 1 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, 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/46495337641.html" target="_blank"><img src="http://farm8.static.flickr.com/7862/46495337641_b4851bbe12_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 8 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (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/46443972122.html" target="_blank"><img src="http://farm5.static.flickr.com/4823/46443972122_cac5de7a14_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 9 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 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/51011193587.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011193587_15f056e09b_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 11 / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 7
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/35784055435.html" target="_blank"><img src="http://farm5.static.flickr.com/4286/35784055435_9e4445ec9e_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 7 / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, 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/34973784043.html" target="_blank"><img src="http://farm5.static.flickr.com/4018/34973784043_dbdbe8e5fb_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 6 / James St. John</span>

サイズ変更など

Chertified crinoid stem (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, 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/27549552297.html" target="_blank"><img src="http://farm2.static.flickr.com/1731/27549552297_b917efc842_m.jpg" alt="" /></a><br />Chertified crinoid stem (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, 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/35784039535.html" target="_blank"><img src="http://farm5.static.flickr.com/4260/35784039535_6282b349a1_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 8 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51011192867.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011192867_f6dccebfc9_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 12 / James St. John</span>

サイズ変更など

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 49
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/28241946198.html" target="_blank"><img src="http://farm1.static.flickr.com/964/28241946198_61e4f7eb2a_m.jpg" alt="" /></a><br />Fossiliferous limestone (Columbus Limestone, Middle Devonian; Sullivant Quarry, Columbus, Ohio, USA) 49 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51011198067.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011198067_b6f0e19b77_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 4 / James St. John</span>

サイズ変更など

Araucaria mirabilis (fossil cone) (Jurassic; Argentina) 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/49021551241.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49021551241_26c70787c2_m.jpg" alt="" /></a><br />Araucaria mirabilis (fossil cone) (Jurassic; Argentina) 1 / James St. John</span>

サイズ変更など

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/45771975444.html" target="_blank"><img src="http://farm5.static.flickr.com/4897/45771975444_106b6966d3_m.jpg" alt="" /></a><br />Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, 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/51011095831.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51011095831_daf6cd0e35_m.jpg" alt="" /></a><br />Argillic zone alteration from hydrothermal veins (Orphan Boy Mine, Butte, Montana, USA) 5 / James St. John</span>

サイズ変更など

Chertified crinoid head in limestone (Fort Payne Formation, Lower Mississippian; Lake Cumberland, 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/50669942703.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50669942703_78f3aa6af2_m.jpg" alt="" /></a><br />Chertified crinoid head in limestone (Fort Payne Formation, Lower Mississippian; Lake Cumberland, Kentucky, USA) / 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) 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/49625016563.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625016563_d7607b4e0e_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 6 / James St. John</span>

サイズ変更など

Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, 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/35743321476.html" target="_blank"><img src="http://farm5.static.flickr.com/4059/35743321476_a14a824fc1_m.jpg" alt="" /></a><br />Silicified rugose corals in fossiliferous limestone (Honaker Trail Formation, Upper Pennsylvanian; Grand County, Utah, USA) 4 / 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) 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/49625801387.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625801387_c65bc77459_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 1 / 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) 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/49625017128.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625017128_4091e80ca3_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 5 / 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) 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/49625018703.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625018703_4dbfe32077_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 2 / 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) 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/49625530721.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49625530721_e7685fbf58_m.jpg" alt="" /></a><br />Paraspirifer bownockeri (pyritized fossil brachiopod) (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA) 12 / James St. John</span>

サイズ変更など

Silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51788427528.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51788427528_70d4a90d19_m.jpg" alt="" /></a><br />Silicified rugose coral in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 5 / James St. John</span>

サイズ変更など

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