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George E. Mustoe and Graham Beard
Calcite-mineralized wood occurs in marine sedimentary rocks on Vancouver Island, British Columbia at sites that range in age from Early Cretaceous to Paleocene. These fossil woods commonly have excellent anatomical preservation that resulted from a permi...
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Gabriel Andrés Casal,Adriana Mónica Nillni,Mauro Nicolás Valle,Jorge Ezequiel González Svoboda,María Celina Tiedemann,Helena Ciapparelli,Lucio Manuel Ibiricu,Marta Mabel Luiz
Pág. 670 - 692
New sedimentological and fossil-diagenetic information from remains of four dinosaurs is herein provided. The fossil material was preserved in deposits of different fluvial sub-environments from the middle section of the Lago Colhué Huapi Formation, Golf...
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George E. Mustoe
The best-known and most-studied petrified wood specimens are those that are mineralized with polymorphs of silica: opal-A, opal-C, chalcedony, and quartz. Less familiar are fossil woods preserved with non-silica minerals. This report reviews discoveries ...
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George E. Mustoe
Petrified wood has traditionally been divided into two categories based on preservation processes: permineralization (where tissues are entombed within a mineral-filled matrix) and replacement (where organic anatomical features have been replicated by in...
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Elena Previtera
Pág. 39 - 58
The Neuquén Basin in northwestern Patagonia, Argentina, holds the most important record of Cretaceous
dinosaurs in South America.The Neuquén Group (Upper Cretaceous) is the richest dinosaur-bearing unit of the basin. It
comprises the Río Limay, the Río N...
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Elena Previtera, Adriana C. Mancuso, Marcelo S. De la fuente, Eloy S. Sánchez
Pág. 197 - 214
The Puesto Viejo Group crops out in the San Rafael Block, southwest Mendoza, Argentina. This group
is an important unit for the knowledge theTriassic faunas. It is composed of basal Quebrada de los Fósiles Formation
(QF) overlying by the Río Seco de la Q...
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