cretaceous

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詳しくはクリエイティブ・コモンズ・ライセンスの利用についてをご覧ください。

cf. Sabal (fossil palm frond) (Laramie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, 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/52592788922.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52592788922_d10a2c8ce9_m.jpg" alt="" /></a><br />cf. Sabal (fossil palm frond) (Laramie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, Colorado, USA) 33 / James St. John</span>

サイズ変更など

Menuites portlocki (fossil ammonite) (Mesaverde Group, Late Cretaceous; 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/50577616218.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50577616218_5944b0ee17_m.jpg" alt="" /></a><br />Menuites portlocki (fossil ammonite) (Mesaverde Group, Late Cretaceous; Wyoming, USA) 1 / James St. John</span>

サイズ変更など

Prionocyclus novimexicanus (fossil ammonite) (Frontier Formation, Upper Cretaceous, ~92 Ma; Wyoming, 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/50623258641.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50623258641_166d2a69b8_m.jpg" alt="" /></a><br />Prionocyclus novimexicanus (fossil ammonite) (Frontier Formation, Upper Cretaceous, ~92 Ma; Wyoming, USA) / James St. John</span>

サイズ変更など

Torosaurus latus (ceratopsian dinosaur) (Late Cretaceous) 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/51345895385.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51345895385_62f2167f11_m.jpg" alt="" /></a><br />Torosaurus latus (ceratopsian dinosaur) (Late Cretaceous) 1 / James St. John</span>

サイズ変更など

Ankeritic carbonatite (Chilwa Alkaline Province, Early Cretaceous, 126 Ma; Chilwa Island, Lake Chilwa, Malawi, southeastern Africa) 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/26410518376.html" target="_blank"><img src="http://farm2.static.flickr.com/1631/26410518376_9208087b25_m.jpg" alt="" /></a><br />Ankeritic carbonatite (Chilwa Alkaline Province, Early Cretaceous, 126 Ma; Chilwa Island, Lake Chilwa, Malawi, southeastern Africa) 3 / James St. John</span>

サイズ変更など

Gold-quartz-sulfide hydrothermal vein (O'Dea Vein or Irishman Vein, Late Cretaceous; Grant Mine, Fairbanks Mining District, Alaska, 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/17153075755.html" target="_blank"><img src="http://farm9.static.flickr.com/8800/17153075755_fe2dd55e52_m.jpg" alt="" /></a><br />Gold-quartz-sulfide hydrothermal vein (O'Dea Vein or Irishman Vein, Late Cretaceous; Grant Mine, Fairbanks Mining District, Alaska, USA) 4 / James St. John</span>

サイズ変更など

Triceratops sp. (ceratopsian dinosaur) (Late Cretaceous) 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/51339810692.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51339810692_8db33b6280_m.jpg" alt="" /></a><br />Triceratops sp. (ceratopsian dinosaur) (Late Cretaceous) 2 / James St. John</span>

サイズ変更など

Hydrothermal quartz vein stockwork in quartz monzonite with jarosite weathering film (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; old tailings pile in Woodville Canyon, just northeast of Butte, southwestern Montana, 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/15239456151.html" target="_blank"><img src="http://farm6.static.flickr.com/5553/15239456151_4ab155b2d1_m.jpg" alt="" /></a><br />Hydrothermal quartz vein stockwork in quartz monzonite with jarosite weathering film (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; old tailings pile in Woodville Canyon, just northeast of Butte, southwestern Montana, USA) / James St. John</span>

サイズ変更など

Torosaurus latus (ceratopsian dinosaur) (Late Cretaceous) 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/51345625529.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51345625529_c4760c7f00_m.jpg" alt="" /></a><br />Torosaurus latus (ceratopsian dinosaur) (Late Cretaceous) 3 / James St. John</span>

サイズ変更など

Dinosaur trampleground (Laramie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, 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/52520208575.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52520208575_bd4880ed8e_m.jpg" alt="" /></a><br />Dinosaur trampleground (Laramie Formation, Upper Cretaceous; Parfet Prehistoric Preserve, Golden, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Spheroidal weathering (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; north of Butte, Montana, 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/50973346223.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50973346223_1cc7d5a2b3_m.jpg" alt="" /></a><br />Spheroidal weathering (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; north of Butte, Montana, USA) 15 / James St. John</span>

サイズ変更など

Vinctifer comptoni (fossil fish) (Santana Formation, Lower Cretaceous; northeastern Brazil) 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/33782639035.html" target="_blank"><img src="http://farm3.static.flickr.com/2905/33782639035_dc28143a36_m.jpg" alt="" /></a><br />Vinctifer comptoni (fossil fish) (Santana Formation, Lower Cretaceous; northeastern Brazil) 2 / James St. John</span>

サイズ変更など

Xiphactinus sp. (fossil fish) (Niobrara Formation, Upper Cretaceous; Gove County, Kansas, 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/33625140112.html" target="_blank"><img src="http://farm3.static.flickr.com/2806/33625140112_a24236c988_m.jpg" alt="" /></a><br />Xiphactinus sp. (fossil fish) (Niobrara Formation, Upper Cretaceous; Gove County, Kansas, USA) 1 / James St. John</span>

サイズ変更など

Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, 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/50351694661.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50351694661_968e0e5db3_m.jpg" alt="" /></a><br />Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, USA) 2 / James St. John</span>

サイズ変更など

Chert nodule in chalk (Upper Cretaceous; White Cliffs of Dover, England) 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/16617660887.html" target="_blank"><img src="http://farm9.static.flickr.com/8591/16617660887_4970fd6df5_m.jpg" alt="" /></a><br />Chert nodule in chalk (Upper Cretaceous; White Cliffs of Dover, England) 1 / James St. John</span>

サイズ変更など

Cretaceous Chalk Cliffs, Beer Devon.
by Sludge G

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/5937044911.html" target="_blank"><img src="http://farm7.static.flickr.com/6013/5937044911_60ebee1c5d_m.jpg" alt="" /></a><br />Cretaceous Chalk Cliffs, Beer Devon. / Sludge G</span>

サイズ変更など

Oil-bearing sandstone (Newcastle Formation, Lower Cretaceous; Newcastle, Wyoming, 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/32601732362.html" target="_blank"><img src="http://farm1.static.flickr.com/540/32601732362_83d10b1762_m.jpg" alt="" /></a><br />Oil-bearing sandstone (Newcastle Formation, Lower Cretaceous; Newcastle, Wyoming, USA) 2 / James St. John</span>

サイズ変更など

Ammonite (Pierre Shale, Upper Cretaceous; Great Plains, 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/52268889104.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52268889104_9d897589e8_m.jpg" alt="" /></a><br />Ammonite (Pierre Shale, Upper Cretaceous; Great Plains, USA) 6 / James St. John</span>

サイズ変更など

Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 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/25473806163.html" target="_blank"><img src="http://farm2.static.flickr.com/1469/25473806163_58b1c39412_m.jpg" alt="" /></a><br />Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 2 / James St. John</span>

サイズ変更など

Chalk (Smoky Hill Chalk Member, Niobrara Formation, Upper Cretaceous; Castle Rock, south of Quinter, Kansas, 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/19711225679.html" target="_blank"><img src="http://farm1.static.flickr.com/305/19711225679_8e39c049ba_m.jpg" alt="" /></a><br />Chalk (Smoky Hill Chalk Member, Niobrara Formation, Upper Cretaceous; Castle Rock, south of Quinter, Kansas, USA) 1 / James St. John</span>

サイズ変更など

Forsterite olivine (Sapat Mafic-Ultramafic Unit; Sapat Mine, Pakistan) 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/50981094602.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50981094602_f03b1bbb03_m.jpg" alt="" /></a><br />Forsterite olivine (Sapat Mafic-Ultramafic Unit; Sapat Mine, Pakistan) 2 / James St. John</span>

サイズ変更など

Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, 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/51735538815.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51735538815_859d42c10f_m.jpg" alt="" /></a><br />Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, USA) 3 / James St. John</span>

サイズ変更など

Insect fossil (Santana Formation, Lower Cretaceous; northeastern Brazil) 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/34166585566.html" target="_blank"><img src="http://farm3.static.flickr.com/2948/34166585566_17c8447425_m.jpg" alt="" /></a><br />Insect fossil (Santana Formation, Lower Cretaceous; northeastern Brazil) 3 / James St. John</span>

サイズ変更など

Uintacrinus socialis (fossil crinoids in chalk) (Niobrara Formation, Upper Cretaceous; western Kansas, USA) 35
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/35122877404.html" target="_blank"><img src="http://farm5.static.flickr.com/4326/35122877404_dff59b9248_m.jpg" alt="" /></a><br />Uintacrinus socialis (fossil crinoids in chalk) (Niobrara Formation, Upper Cretaceous; western Kansas, USA) 35 / James St. John</span>

サイズ変更など

Blueschist with fluorescing benitoite-neptunite-joaquinite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, 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/25608538391.html" target="_blank"><img src="http://farm2.static.flickr.com/1451/25608538391_c0bd96241b_m.jpg" alt="" /></a><br />Blueschist with fluorescing benitoite-neptunite-joaquinite-natrolite vein (Franciscan Complex, Jurassic-Cretaceous; Middle Miocene vein mineralization, 12 Ma; Dallas Gem Mine, California, USA) / James St. John</span>

サイズ変更など

Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, 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/51733828457.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51733828457_ca3dc92380_m.jpg" alt="" /></a><br />Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, USA) 5 / James St. John</span>

サイズ変更など

Sulfidic quartz monzonite (copper ore) (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; sulfide mineralization at 62-66 Ma; Butte Mining District, 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/14838158730.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/14838158730_c1569e660f_m.jpg" alt="" /></a><br />Sulfidic quartz monzonite (copper ore) (Butte Quartz Monzonite, Late Cretaceous, 76 Ma; sulfide mineralization at 62-66 Ma; Butte Mining District, Montana, USA) 1 / James St. John</span>

サイズ変更など

Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, 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/51733827572.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51733827572_a0f1d54b6c_m.jpg" alt="" /></a><br />Diamondiferous lamproite rocks (Prairie Creek Lamproite, Early Cretaceous, 106 Ma; Crater of Diamonds, Pike County, Arkansas, USA) 7 / James St. John</span>

サイズ変更など

Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 86
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/52594894317.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52594894317_ec36318816_m.jpg" alt="" /></a><br />Dinosaur tracks (Dakota Sandstone, Lower Cretaceous; Dinosaur Ridge, Colorado, USA) 86 / James St. John</span>

サイズ変更など

Normal fault in the Dakota Sandstone-Mowry Shale (Turkey Creek Road roadcut, Dakota Hogback, near 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/52722559416.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52722559416_5b95fe935b_m.jpg" alt="" /></a><br />Normal fault in the Dakota Sandstone-Mowry Shale (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 14 / James St. John</span>

サイズ変更など

Conglomerate (Tokio Formation, Upper Cretaceous, ~85 Ma; Crater of Diamonds State Park, 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/16763943876.html" target="_blank"><img src="http://farm8.static.flickr.com/7282/16763943876_6267ac14c2_m.jpg" alt="" /></a><br />Conglomerate (Tokio Formation, Upper Cretaceous, ~85 Ma; Crater of Diamonds State Park, Arkansas, USA) 1 / James St. John</span>

サイズ変更など

Lapis lazuli (Rio Tascadero Limestone, Lower Cretaceous; Flor de los Andes Mine, Andes Mountains, Chile)
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/49166048431.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49166048431_cd562c36a9_m.jpg" alt="" /></a><br />Lapis lazuli (Rio Tascadero Limestone, Lower Cretaceous; Flor de los Andes Mine, Andes Mountains, Chile) / James St. John</span>

サイズ変更など

Ammonite (Pierre Shale, Upper Cretaceous; Great Plains, 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/52268622101.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52268622101_13fece74b9_m.jpg" alt="" /></a><br />Ammonite (Pierre Shale, Upper Cretaceous; Great Plains, USA) 2 / James St. John</span>

サイズ変更など

Four Corners Mine (Dakota Hogback, southwest of 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/52703446703.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52703446703_50795799ed_m.jpg" alt="" /></a><br />Four Corners Mine (Dakota Hogback, southwest of Denver, Colorado, USA) 7 / James St. John</span>

サイズ変更など

Baculites sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, 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/50339467543.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50339467543_a2191d48bc_m.jpg" alt="" /></a><br />Baculites sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, USA) / James St. John</span>

サイズ変更など

Shoshonite lava flows capping South Table Mountain (Denver Formation, Cretaceous-Tertiary; Golden, 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/52743929785.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52743929785_1236e86e8e_m.jpg" alt="" /></a><br />Shoshonite lava flows capping South Table Mountain (Denver Formation, Cretaceous-Tertiary; Golden, Colorado, USA) 4 / James St. John</span>

サイズ変更など

Chalk (Niobrara Formation, Upper Cretaceous; Great Plains, 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/52254611660.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52254611660_2b2c0a993b_m.jpg" alt="" /></a><br />Chalk (Niobrara Formation, Upper Cretaceous; Great Plains, USA) 1 / James St. John</span>

サイズ変更など

Opalized Peratobelus fossil belemnite (Bulldog Shale, Lower Cretaceous; Coober Pedy Opal Field, South Australia) 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/15054623699.html" target="_blank"><img src="http://farm4.static.flickr.com/3847/15054623699_ea518e5b6e_m.jpg" alt="" /></a><br />Opalized Peratobelus fossil belemnite (Bulldog Shale, Lower Cretaceous; Coober Pedy Opal Field, South Australia) 1 / James St. John</span>

サイズ変更など

"Cretaceous Life of the New Jersey" by Benjamin Waterhouse Hawkins
by RobinGoodfellow_(m)

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/49984733841.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49984733841_3ba74562ee_m.jpg" alt="" /></a><br />"Cretaceous Life of the New Jersey" by Benjamin Waterhouse Hawkins / RobinGoodfellow_(m)</span>

サイズ変更など

Lycoptera davidi (fossil fish) (Jehol Lagerstätte, Yixian Formation, Lower Cretaceous; western Liaoning Province, China) 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/15336056555.html" target="_blank"><img src="http://farm3.static.flickr.com/2942/15336056555_1d45d7595f_m.jpg" alt="" /></a><br />Lycoptera davidi (fossil fish) (Jehol Lagerstätte, Yixian Formation, Lower Cretaceous; western Liaoning Province, China) 1 / James St. John</span>

サイズ変更など

Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, USA) 35
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/52653592226.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52653592226_75547926a1_m.jpg" alt="" /></a><br />Dakota Sandstone (Lower Cretaceous) (Dinosaur Ridge, Colorado, USA) 35 / James St. John</span>

サイズ変更など

Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 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/26050440846.html" target="_blank"><img src="http://farm2.static.flickr.com/1473/26050440846_b1d0af7679_m.jpg" alt="" /></a><br />Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 6 / 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) 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/52689334659.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52689334659_7a8d2a1a0a_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 24 / James St. John</span>

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Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 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/26076377155.html" target="_blank"><img src="http://farm2.static.flickr.com/1623/26076377155_5c38d663a1_m.jpg" alt="" /></a><br />Rastellum carinatum fossil oyster (Upper Cretaceous; Marovoay, Madagascar) 5 / James St. John</span>

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Mammals and the Cretaceous-Tertiary Mass Extinction
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/20825333268.html" target="_blank"><img src="http://farm6.static.flickr.com/5728/20825333268_eac4b9d5ed_m.jpg" alt="" /></a><br />Mammals and the Cretaceous-Tertiary Mass Extinction / James St. John</span>

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Mookaite (Windalia Radiolarite Formation, Lower Cretaceous; Western Australia) 29
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/53965186489.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53965186489_822571b681_m.jpg" alt="" /></a><br />Mookaite (Windalia Radiolarite Formation, Lower Cretaceous; Western Australia) 29 / James St. John</span>

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Ison Creek Kimberlite (Elliott County Peridotite, Late Cretaceous, 75 Ma; west of Stephens, Elliott County, Kentucky, 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/48383195247.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48383195247_4898f00aaf_m.jpg" alt="" /></a><br />Ison Creek Kimberlite (Elliott County Peridotite, Late Cretaceous, 75 Ma; west of Stephens, Elliott County, Kentucky, USA) 21 / James St. John</span>

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Ammolite from Placenticeras fossil ammonite (Bearpaw Formation, Upper Cretaceous, 70-75 Ma; mine in St. Mary River Valley, Alberta, Canada) 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/39534752580.html" target="_blank"><img src="http://farm1.static.flickr.com/898/39534752580_8fe042cd2c_m.jpg" alt="" /></a><br />Ammolite from Placenticeras fossil ammonite (Bearpaw Formation, Upper Cretaceous, 70-75 Ma; mine in St. Mary River Valley, Alberta, Canada) 6 / James St. John</span>

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Mookaite (Windalia Radiolarite Formation, Lower Cretaceous; Western Australia) 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/31972041437.html" target="_blank"><img src="http://farm8.static.flickr.com/7859/31972041437_d90d66ac21_m.jpg" alt="" /></a><br />Mookaite (Windalia Radiolarite Formation, Lower Cretaceous; Western Australia) 18 / James St. John</span>

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Fossil leaf (Laramie Formation; Upper Cretaceous; Parfet Prehistoric Preserve, Golden, 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/52593317864.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52593317864_bf8babb79d_m.jpg" alt="" /></a><br />Fossil leaf (Laramie Formation; Upper Cretaceous; Parfet Prehistoric Preserve, Golden, Colorado, USA) 5 / James St. John</span>

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Fluorite-manganoan calcite (Dalnegorsk Skarn Deposit, Late Cretaceous, 70-90 Ma; 2nd Sovietsky Mine, Dalnegorsk, 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/54516042677.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54516042677_8de9367020_m.jpg" alt="" /></a><br />Fluorite-manganoan calcite (Dalnegorsk Skarn Deposit, Late Cretaceous, 70-90 Ma; 2nd Sovietsky Mine, Dalnegorsk, Russia) 2 / James St. John</span>

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Velociraptor mongoliensis (theropod dinosaur skull - sculpture) (Upper Cretaceous; Gobi Desert, Mongolia-China) 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/33705450228.html" target="_blank"><img src="http://farm8.static.flickr.com/7854/33705450228_16df3cdc90_m.jpg" alt="" /></a><br />Velociraptor mongoliensis (theropod dinosaur skull - sculpture) (Upper Cretaceous; Gobi Desert, Mongolia-China) 1 / James St. John</span>

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Ammolite from Placenticeras fossil ammonite (Bearpaw Formation, Upper Cretaceous, 70-75 Ma; mine in St. Mary River Valley, Alberta, Canada) 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/39534753470.html" target="_blank"><img src="http://farm1.static.flickr.com/806/39534753470_27469831f6_m.jpg" alt="" /></a><br />Ammolite from Placenticeras fossil ammonite (Bearpaw Formation, Upper Cretaceous, 70-75 Ma; mine in St. Mary River Valley, Alberta, Canada) 4 / James St. John</span>

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Opalized fossil bivalve (Bulldog Shale, Lower Cretaceous; Coober Pedy Opal Field, South Australia) 08
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/15024739227.html" target="_blank"><img src="http://farm4.static.flickr.com/3879/15024739227_73eee6c164_m.jpg" alt="" /></a><br />Opalized fossil bivalve (Bulldog Shale, Lower Cretaceous; Coober Pedy Opal Field, South Australia) 08 / James St. John</span>

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Bituminous coal (Ferron Sandstone Member, Mancos Shale, Upper Cretaceous; Bronco Mine, Emery County, Utah, 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/51918867973.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51918867973_aa3f42eba1_m.jpg" alt="" /></a><br />Bituminous coal (Ferron Sandstone Member, Mancos Shale, Upper Cretaceous; Bronco Mine, Emery County, Utah, USA) 9 / James St. John</span>

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Stromatolite (Cretaceous, circa 68 millions years old)
by Bernard DUPONT

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/49686955667.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49686955667_bc99c8792b_m.jpg" alt="" /></a><br />Stromatolite (Cretaceous, circa 68 millions years old) / Bernard DUPONT</span>

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Mancos Shale badlands (Upper Cretaceous; Dinosaur National Monument, Utah, 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/29534564304.html" target="_blank"><img src="http://farm9.static.flickr.com/8270/29534564304_c9d6b3e828_m.jpg" alt="" /></a><br />Mancos Shale badlands (Upper Cretaceous; Dinosaur National Monument, Utah, USA) 2 / James St. John</span>

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Cross bedding in structurally tilted quartzose sandstones (Dakota Sandstone, Lower Cretaceous; crest of Dinosaur Ridge (Dakota Hogback), 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/15044046741.html" target="_blank"><img src="http://farm6.static.flickr.com/5559/15044046741_e6d6eabab8_m.jpg" alt="" /></a><br />Cross bedding in structurally tilted quartzose sandstones (Dakota Sandstone, Lower Cretaceous; crest of Dinosaur Ridge (Dakota Hogback), west of Denver, Colorado, USA) / James St. John</span>

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Holaster simplex (fossil echinoid) (Cretaceous; Bryan County, Oklahoma, 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/49594036666.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49594036666_56b0caf5c4_m.jpg" alt="" /></a><br />Holaster simplex (fossil echinoid) (Cretaceous; Bryan County, Oklahoma, USA) 4 / James St. John</span>

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Conglomerate (Tokio Formation, Upper Cretaceous, ~85 Ma; Crater of Diamonds State Park, Arkansas, 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/16167501664.html" target="_blank"><img src="http://farm8.static.flickr.com/7615/16167501664_3317934abd_m.jpg" alt="" /></a><br />Conglomerate (Tokio Formation, Upper Cretaceous, ~85 Ma; Crater of Diamonds State Park, Arkansas, USA) 2 / James St. John</span>

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