hogback

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Arthur Lakes' Quarry 10 (Morrison Formation, Upper Jurassic; Dakota Hogback, Morrison, Colorado, 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/52811407755.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52811407755_74f605d8a1_m.jpg" alt="" /></a><br />Arthur Lakes' Quarry 10 (Morrison Formation, Upper Jurassic; Dakota Hogback, Morrison, Colorado, USA) 4 / James St. John</span>

サイズ変更など

Red deer canyon hog back
by jasonwoodhead23

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/49909240986.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49909240986_7e443da2f3_m.jpg" alt="" /></a><br />Red deer canyon hog back / jasonwoodhead23</span>

サイズ変更など

Prairie
by wackybadger

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/26576161723.html" target="_blank"><img src="http://farm8.static.flickr.com/7035/26576161723_0609f8eb9c_m.jpg" alt="" /></a><br />Prairie / wackybadger</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52687993851.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52687993851_4b236a0fef_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 15 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52687474672.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52687474672_654c9581ea_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 16 / James St. John</span>

サイズ変更など

Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, 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/52818458209.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52818458209_23d93f0ec7_m.jpg" alt="" /></a><br />Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Concretion (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/22209615205.html" target="_blank"><img src="http://farm6.static.flickr.com/5719/22209615205_d9cfc259f2_m.jpg" alt="" /></a><br />Concretion (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Paddling
by jsalita

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/14954562895.html" target="_blank"><img src="http://farm6.static.flickr.com/5579/14954562895_1d54593501_m.jpg" alt="" /></a><br />Paddling / jsalita</span>

サイズ変更など

Dakota Hogback & Red Rocks Park (west of Denver, Colorado, 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/52550589734.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52550589734_e8bba1b601_m.jpg" alt="" /></a><br />Dakota Hogback & Red Rocks Park (west of Denver, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, 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/8278739942.html" target="_blank"><img src="http://farm9.static.flickr.com/8478/8278739942_a217a1aa1f_m.jpg" alt="" /></a><br />Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, USA) 3 / James St. John</span>

サイズ変更など

Rippled sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/52579514773.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52579514773_a7b769ff64_m.jpg" alt="" /></a><br />Rippled sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 16 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 33
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/52722811144.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52722811144_00ebdb7a14_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 33 / James St. John</span>

サイズ変更など

Uranium roll front & molybdenum roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52688487408.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52688487408_3c6bba4bcf_m.jpg" alt="" /></a><br />Uranium roll front & molybdenum roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Dakota Hogback (west of Denver, Colorado, 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/52550296591.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52550296591_c576daed09_m.jpg" alt="" /></a><br />Dakota Hogback (west of Denver, Colorado, USA) 14 / James St. John</span>

サイズ変更など

A trio on Hogback
by randomduck

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/4863534128.html" target="_blank"><img src="http://farm5.static.flickr.com/4121/4863534128_9e313f3e69_m.jpg" alt="" /></a><br />A trio on Hogback / randomduck</span>

サイズ変更など

Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, 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/52817704477.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52817704477_534c02fc78_m.jpg" alt="" /></a><br />Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, USA) 3 / James St. John</span>

サイズ変更など

Four Corners Mine (Dakota Hogback, southwest of Denver, Colorado, 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/52703448493.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52703448493_a4bce19b8e_m.jpg" alt="" /></a><br />Four Corners Mine (Dakota Hogback, southwest of Denver, Colorado, USA) 3 / James St. John</span>

サイズ変更など

Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; eastern side of Dinosaur Ridge, west of Denver, north-central Colorado, 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/14923973613.html" target="_blank"><img src="http://farm6.static.flickr.com/5605/14923973613_0baf8585ea_m.jpg" alt="" /></a><br />Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; eastern side of Dinosaur Ridge, west of Denver, north-central Colorado, USA) / James St. John</span>

サイズ変更など

Rippled sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/52578533247.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52578533247_cf3d98815f_m.jpg" alt="" /></a><br />Rippled sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 5 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52685886596.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52685886596_4f35572119_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 12 / James St. John</span>

サイズ変更など

Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, 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/8278740216.html" target="_blank"><img src="http://farm9.static.flickr.com/8199/8278740216_e3f2491ee4_m.jpg" alt="" /></a><br />Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Rifle Gap
by Jeffrey Beall

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/33697081802.html" target="_blank"><img src="http://farm3.static.flickr.com/2903/33697081802_c75da480fe_m.jpg" alt="" /></a><br />Rifle Gap / Jeffrey Beall</span>

サイズ変更など

Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, 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/52817704842.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52817704842_e9b87d0b51_m.jpg" alt="" /></a><br />Arthur Lakes' Quarry 10 (Dakota Hogback, Morrison, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, 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/8277683545.html" target="_blank"><img src="http://farm9.static.flickr.com/8071/8277683545_07e0960eeb_m.jpg" alt="" /></a><br />Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, 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/52661570220.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52661570220_fdbd64cd47_m.jpg" alt="" /></a><br />Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, USA) 15 / James St. John</span>

サイズ変更など

Fossil bivalve (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/52618297707.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52618297707_a8df6f1760_m.jpg" alt="" /></a><br />Fossil bivalve (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 2 / James St. John</span>

サイズ変更など

2009Vermont049
by LukeGordon1

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/3647383879.html" target="_blank"><img src="http://farm4.static.flickr.com/3571/3647383879_9d000c0090_m.jpg" alt="" /></a><br />2009Vermont049 / LukeGordon1</span>

サイズ変更など

Red Rocks
by Eric Lumsden

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/6031516880.html" target="_blank"><img src="http://farm7.static.flickr.com/6194/6031516880_80fc81a9ee_m.jpg" alt="" /></a><br />Red Rocks / Eric Lumsden</span>

サイズ変更など

Sauropod dinosaur footprint in sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, 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/52566574867.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52566574867_6140910609_m.jpg" alt="" /></a><br />Sauropod dinosaur footprint in sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, USA) 15 / James St. John</span>

サイズ変更など

Native sulfur (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52722820349.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52722820349_1733895ea9_m.jpg" alt="" /></a><br />Native sulfur (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Dakota Hogback (west of Denver, Colorado, 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/52549840567.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52549840567_e7ddbb79ea_m.jpg" alt="" /></a><br />Dakota Hogback (west of Denver, Colorado, USA) 16 / James St. John</span>

サイズ変更など

Normal fault in Dakota Sandstone-Mowry Shale (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52683841704.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52683841704_17ac8bc063_m.jpg" alt="" /></a><br />Normal fault in Dakota Sandstone-Mowry Shale (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 6 / James St. John</span>

サイズ変更など

Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, 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/52661414314.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52661414314_ff42cec82f_m.jpg" alt="" /></a><br />Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, USA) 17 / James St. John</span>

サイズ変更など

Old Gypsum Mill
by warriorwoman531

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/6190560172.html" target="_blank"><img src="http://farm7.static.flickr.com/6150/6190560172_7c80335926_m.jpg" alt="" /></a><br />Old Gypsum Mill / warriorwoman531</span>

サイズ変更など

Caririchnium leonardii (dinosaur track) (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 52
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/52586474393.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52586474393_6921e84fce_m.jpg" alt="" /></a><br />Caririchnium leonardii (dinosaur track) (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 52 / James St. John</span>

サイズ変更など

Sauropod dinosaur footprint in sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, 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/52567313989.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52567313989_f64245eb57_m.jpg" alt="" /></a><br />Sauropod dinosaur footprint in sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, USA) 24 / James St. John</span>

サイズ変更など

Dakota Hogback Watergap (Morrison, Colorado, 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/52811376700.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52811376700_03f45bcb65_m.jpg" alt="" /></a><br />Dakota Hogback Watergap (Morrison, Colorado, USA) 10 / James St. John</span>

サイズ変更など

2009Vermont048
by LukeGordon1

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/3647382393.html" target="_blank"><img src="http://farm4.static.flickr.com/3373/3647382393_f1f71b2321_m.jpg" alt="" /></a><br />2009Vermont048 / LukeGordon1</span>

サイズ変更など

Madison County Hogback Bridge
by minnemom

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/5013080318.html" target="_blank"><img src="http://farm5.static.flickr.com/4108/5013080318_c6b93e6c2f_m.jpg" alt="" /></a><br />Madison County Hogback Bridge / minnemom</span>

サイズ変更など

2009Vermont053
by LukeGordon1

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/3648194632.html" target="_blank"><img src="http://farm4.static.flickr.com/3601/3648194632_785d3563cb_m.jpg" alt="" /></a><br />2009Vermont053 / LukeGordon1</span>

サイズ変更など

Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, 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/8277685509.html" target="_blank"><img src="http://farm9.static.flickr.com/8205/8277685509_bb3a731f03_m.jpg" alt="" /></a><br />Dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, USA) 4 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 20
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/52687473207.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52687473207_990fe6ed96_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 20 / James St. John</span>

サイズ変更など

Aster, tbd
by wackybadger

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/27085293582.html" target="_blank"><img src="http://farm8.static.flickr.com/7068/27085293582_276d0a0271_m.jpg" alt="" /></a><br />Aster, tbd / wackybadger</span>

サイズ変更など

Directing traffic, Carpenter (and Hogback) at Washtenaw, 1977.
by In Memoriam: Wystan

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/6141252831.html" target="_blank"><img src="http://farm7.static.flickr.com/6153/6141252831_75da98d909_m.jpg" alt="" /></a><br />Directing traffic, Carpenter (and Hogback) at Washtenaw, 1977. / In Memoriam: Wystan</span>

サイズ変更など

Bioturbated sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/52578422017.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52578422017_9e8bdbdd74_m.jpg" alt="" /></a><br />Bioturbated sandstone (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 15 / James St. John</span>

サイズ変更など

Sauropod dinosaur track in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, 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/8277738579.html" target="_blank"><img src="http://farm9.static.flickr.com/8350/8277738579_278cf854ae_m.jpg" alt="" /></a><br />Sauropod dinosaur track in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, USA) 4 / James St. John</span>

サイズ変更など

Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 87
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/52595901978.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52595901978_e21252f052_m.jpg" alt="" /></a><br />Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 87 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 23
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/52689065036.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52689065036_fbaf48a363_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 23 / James St. John</span>

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Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52683844109.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52683844109_a3be2cfb39_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 7 / James St. John</span>

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Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/52687991846.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52687991846_d2b7872b7c_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 21 / James St. John</span>

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Dakota Hogback Watergap (Morrison, Colorado, 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/52810408477.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52810408477_71827edd23_m.jpg" alt="" /></a><br />Dakota Hogback Watergap (Morrison, Colorado, USA) 9 / James St. John</span>

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Dakota Hogback Watergap (Morrison, Colorado, 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/52811169149.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52811169149_c5eb757e63_m.jpg" alt="" /></a><br />Dakota Hogback Watergap (Morrison, Colorado, USA) 6 / James St. John</span>

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Fossil seed pod (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/52620053242.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52620053242_98ed3dc10d_m.jpg" alt="" /></a><br />Fossil seed pod (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 2 / James St. John</span>

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Radioactive dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, 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/8277701353.html" target="_blank"><img src="http://farm9.static.flickr.com/8059/8277701353_9bc90e9406_m.jpg" alt="" /></a><br />Radioactive dinosaur bone in sandstone (Morrison Formation, Upper Jurassic; western side of Dinosaur Ridge, Colorado, USA) / James St. John</span>

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Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 36
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/52722550536.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52722550536_daa122d87a_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 36 / James St. John</span>

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Sauropod dinosaur footprint bulge in sandstone (upper Morrison Formation, Upper Jurassic; Dinosaur Ridge, west of Denver, Colorado, 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/15879684765.html" target="_blank"><img src="http://farm9.static.flickr.com/8660/15879684765_a8261de7df_m.jpg" alt="" /></a><br />Sauropod dinosaur footprint bulge in sandstone (upper Morrison Formation, Upper Jurassic; Dinosaur Ridge, west of Denver, Colorado, USA) / James St. John</span>

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Dakota Hogback Watergap (Morrison, Colorado, 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/52810409097.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52810409097_167454834c_m.jpg" alt="" /></a><br />Dakota Hogback Watergap (Morrison, Colorado, USA) 7 / James St. John</span>

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Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, 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/8277862389.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/8277862389_a3e8e7ea1e_m.jpg" alt="" /></a><br />Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 1 / James St. John</span>

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Sauropod dinosaur footprint in lacustrine sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, 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/22195571422.html" target="_blank"><img src="http://farm6.static.flickr.com/5685/22195571422_cbf204de6f_m.jpg" alt="" /></a><br />Sauropod dinosaur footprint in lacustrine sandstone (Morrison Formation, Upper Jurassic, western side of Dinosaur Ridge, Colorado, USA) 8 / James St. John</span>

サイズ変更など

Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, 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/15693972277.html" target="_blank"><img src="http://farm8.static.flickr.com/7532/15693972277_8a08471a57_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 6 / James St. John</span>

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