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USA - Utah, Henry Mountains, coniferous, Jurassic, 13 cm |
USA - Utah, Henry Mountains, coniferous, Jurassic, 12 cm |
USA - Utah, Henry Mountains, Notom, coniferous, Jurassic, 7,5 cm |
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USA - Utah, Henry Mountains, Notom, coniferous, Jurassic,
10,5 cm |
USA - Utah, Henry Mountains, Notom, coniferous, Jurassic,
5,5 cm |
USA - Utah, Henry Mountains, Notom, coniferous, Jurassic,
6,5 cm |
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USA - Utah, Henry Mountains, Notom, coniferous, Jurassic, 4,5 cm |
USA - Utah, Henry Mountains, coniferous, Jurassic, 5,5 cm |
USA - Utah, Behuninia sp.,
Jurassic, 3,5 cm |
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USA - Utah, Henry Mountains, coniferous, Jurassic, 9 cm |
USA - Wyoming, Farson, Acrostichum sp. (petiole), Eocene, diameter 2 cm |
USA - Wyoming, deciduous,
Eocene, lenght 10 cm |
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USA - Wyoming, deciduous,
Eocene, lenght 11 cm |
USA - Wyoming, Yellow Point Playa, deciduous, Eocene, lenght 12 cm |
USA - Wyoming,
Tempskya sp., Cretaceous, diameter 12 cm |
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USA - Wyoming, Blue Forest, deciduous, Eocene, diameter 3 cm |
USA - Wyoming, Farson, Hays' Ranch, Amyridoxylon cf. ordinatum (deciduous), Eocene, diameter 4 cm |
USA - Wyoming, Farson, Acrostichum sp. (petiole), Eocene, diameter 2 cm |
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USA - Utah, Hansen Creek,
Red Wood, coniferous, Jurassic,
diameter up to 1 cm |
USA - Utah, Henry Mountains, unidentified wood, Jurassic, 8,5 cm |
USA - Wyoming, Farson, Hays' Ranch, Amyridoxylon cf. ordinatum (deciduous), Eocene, diameter 3,5 cm |
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USA - Wyoming, Farson, Hays' Ranch, Amyridoxylon cf. ordinatum (deciduous), Eocene, diameter 4,5 cm |
USA - Wyoming, Blue Forest, Schinoxylon sp., Eocene,
diameter 17 cm |
USA - Wyoming, Farson, Acrostichum sp. (petiole), Eocene, diameter 2 cm |
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USA - Wyoming, Farson, Acrostichum sp. (petiole), Eocene, diameter 2 cm |
USA - Wyoming, Farson, deciduous, Eocene, diameter 3 cm |
USA - Utah, Hansen Creek,
Red Wood, coniferous, Jurassic,
diameter 4,5 cm |
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USA - Nevada, Virgin Valley, opalized wood, coniferous,
colorful iridescence, Miocene, 2 cm |
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USA - Nevada, Virgin Valley, opalized limb, coniferous, colorful iridescence, Miocene, 4 cm |
USA - Wyoming, Blue Forest, deciduous,
Eocene, 8 cm |
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USA - Arizona, Chinle Formation, star "Dadoxylon" sp., Triassic, diameter 13,5 cm |
USA - Arizona, Chinle Formation, star "Dadoxylon" sp., Triassic, diameter 13,5 cm, polished and raw side |
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USA - Utah, Garfield County, Henry Mountains, coniferous, Jurassic, diameter 7 cm |
USA - Utah, Henry Mountains, coniferous, Jurassic, diameter 7 cm |
USA - Arizona, Chinle Formation, star "Dadoxylon" sp., Triassic, diameter 8 cm |
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USA - Nevada/Oregon, coniferous petrified wood in stromatolites, Miocene, diameter 13 cm |
USA - Wyoming, deciduous petrified wood
in stromatolites, Eocene, diameter 4 cm |
USA - Wyoming, deciduous petrified wood
in stromatolites, Eocene, diameter 32 cm |
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USA - Wyoming, deciduous petrified wood
in stromatolites Chlorellopsis sp., Eocene, diameter 5 cm |
USA - Nevada/Oregon, opalized ulmus-like wood Ulmoxylon sp. in stromatolites, Miocene, diameter 6 cm |
USA - Nevada/Oregon, deciduous petrified wood in stromatolites, Miocene,
diameter 9 cm |
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USA - Wyoming, Beaver Rim, Wagon Bed Fm., Pandanus sp., Eocene,
22,5 cm |
USA - Wyoming, Beaver Rim, Wagon Bed Fm., Pandanus sp., Eocene,
20 cm |
USA - Utah, Henry Mountains, Morrison Fm., coniferous, Jurassic, diameter 6 cm |
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USA - Utah, Henry Mountains, Morrison Fm., coniferous, knots on the surface, Jurassic,
diameter 8 cm, height 11 cm |
USA - Utah, Henry Mountains, Morrison Fm., coniferous, Jurassic, diameter 6,5 cm |
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USA - East. Utah, cycadeoid, longitudinal section, Jurassic, 12 cm |
USA - Utah, Westwater, gymnospermous,
Jurassic, 9 cm |
USA - Wyoming,
deciduous,
Eocene, 9 cm |
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USA - Oregon, Post, Clarno Formation, Platanoxylon sp.,
Eocene/Miocene, 8,5 cm |
USA - South. Utah, Cycadeoidea sp., longitudinal section, Jurassic, 6,5 cm |
USA - Wyoming, Hays'Ranch, near Farson, Amyridoxylon ordinatum (deciduous),
Eocene, 3 cm |
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USA - Texas, Karnes City, Palmoxylon sp., Eocene, agate additions,
diameter 8 cm |
USA - Arizona, Winslow, Chinle Formation, coniferous (known as "Araucarioxylon arizonicum"), chromium wood, Triassic, diameter 4,5 cm, lenght 3 cm |
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USA - Texas, Karnes City, polygonal cracks in wood filled with agate,
Eocene, 8 cm |
USA - Texas, Karnes City, polygonal cracks in wood filled with agate,
Eocene, 9 cm |
USA - Texas, Karnes City, polygonal cracks in wood filled with agate,
Eocene, 8 cm |
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USA - Arizona, Chinle Formation, Snowflake,
star "Dadoxylon" sp., Triassic, diameter 13 cm |
USA - Arizona, Chinle Formation, Long H Ranch, star "Dadoxylon sp.", Triassic, diameter 7 cm |
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USA - Wyoming, Tempskya sp., diameter 19,5 cm |
USA - Oregon, Greenhorn Mountain, Tempskya sp., diameter 17 cm |
USA - Utah, San Juan County, Tempskya sp., piryte additions,
diameter 19,5 cm |
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USA - Oregon, Hampton Butte, deciduous,
diameter 4,5 cm |
USA - Nevada, Protoyucca
shadishii, Joshua Tree,
Miocene, 11 cm |
USA - Utah, coniferous, wood attacked by fungi Polyporites wardii, Triassic, diameter 30 cm |
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USA - Texas, Karnes City,
Snake Wood, Eocene,
6 x 5 cm |
USA - Texas, Karnes City, unidentified, Eocene,
5,5 x 3,5 cm |
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USA - Texas, Karnes City, Palmoxylon sp.,
Snake Wood, Eocene, diameter 8 - 9 cm |
USA - Illinois, Williamson County, Asolanus camptotaenia, imprint, Carboniferous, 5 - 6 cm |
USA - Arizona, Chinle Formation, unidentified, Triassic, 20 x 9 cm |
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USA - Wyoming, Green River, deciduous, Eocene, agate additions, diameter 10,5 - 16 cm |
USA - Arizona, Winslow, Chinle Formation, Woodworthia arizonica, chromium wood, Triassic,
max. diameter 4,5 cm, lenght 13 cm |
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