pterosaur

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Seirocrinus subangularis (fossil crinoid) (Posidonia Shale, Lower Jurassic; Holzmaden area, Germany) 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/34966642214.html" target="_blank"><img src="http://farm5.static.flickr.com/4260/34966642214_4ed98cc24e_m.jpg" alt="" /></a><br />Seirocrinus subangularis (fossil crinoid) (Posidonia Shale, Lower Jurassic; Holzmaden area, Germany) 3 / James St. John</span>

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Ammolite from a fossil ammonite (Cretaceous; Alberta, Canada) 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/32180813094.html" target="_blank"><img src="http://farm3.static.flickr.com/2297/32180813094_3249789de4_m.jpg" alt="" /></a><br />Ammolite from a fossil ammonite (Cretaceous; Alberta, Canada) 3 / James St. John</span>

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Pteranodon above Sue at the Field Museum, Chicago, IL
by Dallas Krentzel

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/6802015872.html" target="_blank"><img src="http://farm8.static.flickr.com/7188/6802015872_2bb6c2bd72_m.jpg" alt="" /></a><br />Pteranodon above Sue at the Field Museum, Chicago, IL / Dallas Krentzel</span>

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Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, 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/50351845932.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50351845932_6582cc5664_m.jpg" alt="" /></a><br />Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, USA) 1 / James St. John</span>

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Making of radius and ulna
by Helder da Rocha

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/7140701297.html" target="_blank"><img src="http://farm9.static.flickr.com/8022/7140701297_e43bdab668_m.jpg" alt="" /></a><br />Making of radius and ulna / Helder da Rocha</span>

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Cladocyclus gardneri detail 05 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/45740680792.html" target="_blank"><img src="http://farm5.static.flickr.com/4906/45740680792_549ff3ca58_m.jpg" alt="" /></a><br />Cladocyclus gardneri detail 05 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Baculites (fossil ammonites) (Ozan Formation, Upper Cretaceous; eastern Texas, 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/50347612496.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50347612496_21a38a60bd_m.jpg" alt="" /></a><br />Baculites (fossil ammonites) (Ozan Formation, Upper Cretaceous; eastern Texas, USA) 1 / James St. John</span>

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Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, 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/50433749977.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50433749977_37c7e7bbf3_m.jpg" alt="" /></a><br />Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, USA) 6 / James St. John</span>

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Seirocrinus subangularis (fossil crinoid) (Posidonia Shale, Lower Jurassic; Holzmaden area, 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/35674916591.html" target="_blank"><img src="http://farm5.static.flickr.com/4236/35674916591_9db8f14434_m.jpg" alt="" /></a><br />Seirocrinus subangularis (fossil crinoid) (Posidonia Shale, Lower Jurassic; Holzmaden area, Germany) 1 / James St. John</span>

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Teeth on head
by Helder da Rocha

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/6994603250.html" target="_blank"><img src="http://farm8.static.flickr.com/7235/6994603250_01acd10be7_m.jpg" alt="" /></a><br />Teeth on head / Helder da Rocha</span>

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Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, 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/50350991813.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50350991813_84ced6c122_m.jpg" alt="" /></a><br />Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, USA) 3 / James St. John</span>

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Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, 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/50432888478.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50432888478_079c5f5c01_m.jpg" alt="" /></a><br />Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, USA) 8 / James St. John</span>

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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>

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Vinctifer comptoni 02 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/43973544910.html" target="_blank"><img src="http://farm5.static.flickr.com/4897/43973544910_6c4997fcba_m.jpg" alt="" /></a><br />Vinctifer comptoni 02 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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The Primeval World
by Cliff Johnson

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/5221793834.html" target="_blank"><img src="http://farm5.static.flickr.com/4122/5221793834_786d261a92_m.jpg" alt="" /></a><br />The Primeval World / Cliff Johnson</span>

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Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, 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/50351847447.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50351847447_48cdd961c8_m.jpg" alt="" /></a><br />Placenticeras sp. (fossil ammonite) (Pierre Shale, Upper Cretaceous; Meade County, South Dakota, USA) 4 / James St. John</span>

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dinosaur and pterosaur tracks - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/31886891698.html" target="_blank"><img src="http://farm5.static.flickr.com/4828/31886891698_7e3480cc96_m.jpg" alt="" /></a><br />dinosaur and pterosaur tracks - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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cast of Rhamphorhynchus muensteri detail 03 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/45033777944.html" target="_blank"><img src="http://farm2.static.flickr.com/1906/45033777944_97e89d6e1b_m.jpg" alt="" /></a><br />cast of Rhamphorhynchus muensteri detail 03 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Two humeri
by Helder da Rocha

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/6994610164.html" target="_blank"><img src="http://farm8.static.flickr.com/7216/6994610164_4d5eb0700f_m.jpg" alt="" /></a><br />Two humeri / Helder da Rocha</span>

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Studying the radius and ulna
by Helder da Rocha

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/6994610100.html" target="_blank"><img src="http://farm8.static.flickr.com/7265/6994610100_2b9a866fa9_m.jpg" alt="" /></a><br />Studying the radius and ulna / Helder da Rocha</span>

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Rhacolepis buccalis detail 03 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/31919368238.html" target="_blank"><img src="http://farm5.static.flickr.com/4918/31919368238_225f341727_m.jpg" alt="" /></a><br />Rhacolepis buccalis detail 03 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, 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/50433582186.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50433582186_bdf5610018_m.jpg" alt="" /></a><br />Baculites (fossil ammonite) (Ozan Formation, Upper Cretaceous; eastern Texas, USA) 4 / James St. John</span>

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First attempt at ribs and stern
by Helder da Rocha

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/7140696681.html" target="_blank"><img src="http://farm8.static.flickr.com/7275/7140696681_6ed7eaf11e_m.jpg" alt="" /></a><br />First attempt at ribs and stern / Helder da Rocha</span>

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pterosaur fishing display 02 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/43973517800.html" target="_blank"><img src="http://farm5.static.flickr.com/4865/43973517800_88d9e3dc8b_m.jpg" alt="" /></a><br />pterosaur fishing display 02 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Ammonoid 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/50340161117.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50340161117_df484190f7_m.jpg" alt="" /></a><br />Ammonoid 6 / James St. John</span>

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You've got Mail - Sie haben Post
by Photocapy

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/1817335274.html" target="_blank"><img src="http://farm3.static.flickr.com/2402/1817335274_03da43d394_m.jpg" alt="" /></a><br />You've got Mail - Sie haben Post / Photocapy</span>

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Cladocyclus gardneri detail 03 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/45740673922.html" target="_blank"><img src="http://farm5.static.flickr.com/4815/45740673922_1a3ae0dc53_m.jpg" alt="" /></a><br />Cladocyclus gardneri detail 03 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Ammonoids 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/50339318553.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50339318553_6489b89899_m.jpg" alt="" /></a><br />Ammonoids 4 / James St. John</span>

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Posed pteranodon model
by DSC82491

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/9539487059.html" target="_blank"><img src="http://farm4.static.flickr.com/3749/9539487059_40600917de_m.jpg" alt="" /></a><br />Posed pteranodon model / DSC82491</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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Baculites ovatus (fossil ammonite) (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/50343063823.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50343063823_fae21c70a4_m.jpg" alt="" /></a><br />Baculites ovatus (fossil ammonite) (Cretaceous) / James St. John</span>

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Pteranodon choking on fish - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/44108045110.html" target="_blank"><img src="http://farm5.static.flickr.com/4904/44108045110_79f1cbe1c2_m.jpg" alt="" /></a><br />Pteranodon choking on fish - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Cladocyclus gardneri detail 01 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/45740668602.html" target="_blank"><img src="http://farm5.static.flickr.com/4830/45740668602_a7bc21e2ba_m.jpg" alt="" /></a><br />Cladocyclus gardneri detail 01 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Planned radius and ulna
by Helder da Rocha

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/6994609984.html" target="_blank"><img src="http://farm9.static.flickr.com/8160/6994609984_e5fc48ca07_m.jpg" alt="" /></a><br />Planned radius and ulna / Helder da Rocha</span>

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20171203 pterosaur downed
by schizoform

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/24968180378.html" target="_blank"><img src="http://farm5.static.flickr.com/4585/24968180378_95356ef5af_m.jpg" alt="" /></a><br />20171203 pterosaur downed / schizoform</span>

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cast of Dawndraco kanzai - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/31887892658.html" target="_blank"><img src="http://farm2.static.flickr.com/1914/31887892658_411ebacd7a_m.jpg" alt="" /></a><br />cast of Dawndraco kanzai - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Ammonoids 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/50339319068.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50339319068_5cc3e500a6_m.jpg" alt="" /></a><br />Ammonoids 3 / James St. John</span>

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Tapejara wellnhoferi - pterosaur fishing display 01 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/43973521740.html" target="_blank"><img src="http://farm5.static.flickr.com/4851/43973521740_ac4f62cfca_m.jpg" alt="" /></a><br />Tapejara wellnhoferi - pterosaur fishing display 01 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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#mypubliclandsroadtrip 2016: Places That Rock, Alcova Fossil ACEC
by mypubliclands

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/27094617943.html" target="_blank"><img src="http://farm8.static.flickr.com/7456/27094617943_2103be1960_m.jpg" alt="" /></a><br />#mypubliclandsroadtrip 2016: Places That Rock, Alcova Fossil ACEC / mypubliclands</span>

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Ammonoids 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/50340160627.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50340160627_f9a67c5a20_m.jpg" alt="" /></a><br />Ammonoids 1 / James St. John</span>

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Vascoceras sp. (fossil ammonite) (Upper Cretaceous; Gombe region, Nigeria) 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/43970880890.html" target="_blank"><img src="http://farm5.static.flickr.com/4841/43970880890_c63ee89888_m.jpg" alt="" /></a><br />Vascoceras sp. (fossil ammonite) (Upper Cretaceous; Gombe region, Nigeria) 3 / James St. John</span>

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Mortoniceras sp. (fossil ammonite) (Lower Cretaceous; Texas, 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/49585774996.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49585774996_6aca5c15f9_m.jpg" alt="" /></a><br />Mortoniceras sp. (fossil ammonite) (Lower Cretaceous; Texas, USA) / James St. John</span>

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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>

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Ammolite from Placenticeras fossil ammonite (Bearpaw Formation, Upper Cretaceous, 70-75 Ma; mine in St. Mary River Valley, Alberta, Canada) 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/40630261644.html" target="_blank"><img src="http://farm1.static.flickr.com/784/40630261644_8f38f57279_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) 10 / James St. John</span>

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Nacreous aragonite shell of Baculites ammonite (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/49073402802.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49073402802_df2f1fb810_m.jpg" alt="" /></a><br />Nacreous aragonite shell of Baculites ammonite (Cretaceous) 1 / James St. John</span>

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Pteranodon
by DSC82491

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/10907745975.html" target="_blank"><img src="http://farm4.static.flickr.com/3793/10907745975_4ccfdaed59_m.jpg" alt="" /></a><br />Pteranodon / DSC82491</span>

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#mypubliclandsroadtrip 2016: Places That Rock, Alcova Fossil ACEC
by mypubliclands

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/27094617813.html" target="_blank"><img src="http://farm8.static.flickr.com/7446/27094617813_441cc97cc7_m.jpg" alt="" /></a><br />#mypubliclandsroadtrip 2016: Places That Rock, Alcova Fossil ACEC / mypubliclands</span>

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Body without ribs
by Helder da Rocha

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/6994605632.html" target="_blank"><img src="http://farm9.static.flickr.com/8155/6994605632_315c2a4bcb_m.jpg" alt="" /></a><br />Body without ribs / Helder da Rocha</span>

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Anhanguera santanae detail 04 - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/31919332088.html" target="_blank"><img src="http://farm5.static.flickr.com/4854/31919332088_2be1dc52ec_m.jpg" alt="" /></a><br />Anhanguera santanae detail 04 - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Diploscaphites sp. (fossil ammonite) (Fox Hills Formation, Upper Cretaceous, 74 Ma; Meade County, South Dakota, 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/33938521313.html" target="_blank"><img src="http://farm5.static.flickr.com/4183/33938521313_2a96609ac2_m.jpg" alt="" /></a><br />Diploscaphites sp. (fossil ammonite) (Fox Hills Formation, Upper Cretaceous, 74 Ma; Meade County, South Dakota, USA) 1 / James St. John</span>

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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>

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Nacreous aragonite shell of Baculites ammonite (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/49073196601.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49073196601_e85a8aedc8_m.jpg" alt="" /></a><br />Nacreous aragonite shell of Baculites ammonite (Cretaceous) 3 / 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) 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/40630260954.html" target="_blank"><img src="http://farm1.static.flickr.com/792/40630260954_f243b5a204_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) 13 / James St. John</span>

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Cryolophosaurus ellioti theropod dinosaur (Hanson Formation, Lower Jurassic; Mt. Kirkpatrick, Queen Alexandra Range, Transantarctic Mountains, Antarctica) 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/46105158912.html" target="_blank"><img src="http://farm5.static.flickr.com/4901/46105158912_76e0913ef5_m.jpg" alt="" /></a><br />Cryolophosaurus ellioti theropod dinosaur (Hanson Formation, Lower Jurassic; Mt. Kirkpatrick, Queen Alexandra Range, Transantarctic Mountains, Antarctica) 10 / James St. John</span>

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Guidraco venator
by Helder da Rocha

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/7486853818.html" target="_blank"><img src="http://farm8.static.flickr.com/7274/7486853818_2efa512ebe_m.jpg" alt="" /></a><br />Guidraco venator / Helder da Rocha</span>

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Pterodaustro guinazui skull cast - Pterosaurs Flight in the Age of Dinosaurs
by Tim Evanson

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/44108040640.html" target="_blank"><img src="http://farm5.static.flickr.com/4816/44108040640_e8911e091e_m.jpg" alt="" /></a><br />Pterodaustro guinazui skull cast - Pterosaurs Flight in the Age of Dinosaurs / Tim Evanson</span>

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Stern, claviculae and scapulae
by Helder da Rocha

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/7140696993.html" target="_blank"><img src="http://farm8.static.flickr.com/7241/7140696993_0c506944a2_m.jpg" alt="" /></a><br />Stern, claviculae and scapulae / Helder da Rocha</span>

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Katroliceras matsumotoi (fossil ammonite) (Late Jurassic; 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/31736486477.html" target="_blank"><img src="http://farm5.static.flickr.com/4815/31736486477_6eaa260a43_m.jpg" alt="" /></a><br />Katroliceras matsumotoi (fossil ammonite) (Late Jurassic; Madagascar) 2 / James St. John</span>

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Another angle
by Helder da Rocha

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/7140697477.html" target="_blank"><img src="http://farm9.static.flickr.com/8168/7140697477_5a5cd6417f_m.jpg" alt="" /></a><br />Another angle / Helder da Rocha</span>

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Vascoceras sp. (fossil ammonite) (Upper Cretaceous; Gombe region, Nigeria) 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/43970881570.html" target="_blank"><img src="http://farm5.static.flickr.com/4809/43970881570_80b78a8dac_m.jpg" alt="" /></a><br />Vascoceras sp. (fossil ammonite) (Upper Cretaceous; Gombe region, Nigeria) 5 / James St. John</span>

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