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(click on thumbnails to enlarge pictures)
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| Argentina - Patagonia, Cerro Cuadrado Formation, coniferous, Jurassic, 12 cm |
Argentina - Patagonia, Cerro Cuadrado Formation, coniferous, Jurassic, 10 cm |
Argentina - Patagonia, Cycadeoidea sp., cross section of the cone, Jurassic/Cretaceous, 5 cm |
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| Argentina - Patagonia, Cycadeoidea sp. armor with cones cross section, Jurassic/Cretaceous, 13 cm |
Argentina - Patagonia, Araucaria sp. cone, cross section, Jurassic, 6 cm |
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Argentina - Patagonia, Cycadeoidea sp., armor cross section, two cones and anatomy of leaf bases visible, Jurassic, 15 cm |
Argentina - Patagonia, coniferous, Mesozoic, diameter, 5 cm |
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Argentina - Patagonia, Chubut, Cycadeoidea sp., armor section,
20 x 15 cm |
Argentina - Patagonia, Chubut, Cycadeoidea sp., Jurassic/ Cretaceous,
diameter 15,5 - 18,5 cm |
Argentina - Patagonia, Rio Negro, Palmoxylon sp., Cretaceous,
diameter 8 - 13,5 cm |
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Argentina - Patagonia, Cerro Cuadrado Formation, Pararaucaria patagonica, Jurassic, length 5,5 cm |
Argentina - Patagonia, Cerro Cuadrado, Araucaria elongata, agate inclusions, Jurassic, transverse section, diameter 5 - 5,5 cm |
Argentina - Santa Cruz, El Moyano, Araucaria mirabilis, Jurassic, longitudinal section,
diameter 5,5 cm |
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Argentina - Patagonia, Cerro Cuadrado Formation, coniferous, attacked by fungus, Triassic,
diameter 4 cm |
Argentina, Coniferopsida class, Jurassic, hematite additions,
quartz mineralisation, complete section, diameter 15 - 18 cm |
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