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Alienopteris livingstonensis gen. et sp. nov., enigmatic petrified tree fern stem (Cyatheales) from the Aptian Cerro Negro Formation, Antarctica
(Academic Press Ltd - Elsevier Science Ltd, 2009-04)
A new genus and species of Mesozoic fern, Alienopteris livingstonensis gen. et sp. nov., is defined, based on permineralized stems recovered from the Aptian Cerro Negro Formation (Antarctica). This new taxon is characterized ...
A new specimen of Millerocaulis (Osmundales: Osmundaceae) from the Cerro Negro Formation (Lower Cretaceous), AntarcticaUn nuevo especimen de Millerocaulis (Osmundales: Osmundaceae) de la Formación Cerro Negro (Cretácico Inferior), Antártida
(Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", 2010-05)
Se describe en detalle un nuevo estípite petrificado de Millerocaulis Erasmus ex Tidwell emend. Vera, colectado en afloramientos de edad aptiana de la Formación Cerro Negro en Isla Livingston (Antártida). Este espécimen ...
Livingstonites gabrielae Gen. Et Sp. Nov., permineralized moss (Bryophyta: Bryopsida) from the aptian cerro negro formation of Livingston Island (South Shetland Islands, Antarctica)
(Asociación Paleontológica Argentina, 2011-03)
The Cerro Negro Formation is a non-marine succession that outcrops in Byers Peninsula (livingston Island) and Williams Point (Snow Island). Both islands belong to the South Shetland Islands Archipelago, Antarctica. 40Ar/39Ar ...
Further evidence supporting high diversity of cyathealean tree ferns in the Early Cretaceous of Antarctica
(Academic Press Ltd - Elsevier Science Ltd, 2015-09)
Two new specimens of a cyathealean fern stems collected from the Lower Cretaceous (Aptian) Cerro Negro Formation, which crops out at the South Shetland Islands, Antarctica, are described in detail. The specimens are ...
New cyathealean tree fern, Yavanna chimaerica gen. et sp. nov., from the Early Cretaceous of Livingston Island, Antarctica
(Academic Press Ltd-elsevier Science Ltd, 2013-05-22)
A new genus and species of cyathealean fern, Yavanna chimaerica gen. et sp. nov., is erected for several permineralized stems recovered from the Early Cretaceous (Aptian) Cerro Negro Formation, which crops out at the South ...
Linkages between the southern Patagonia Pre-Permian basements: new insights from detrital zircons U-Pb SHRIMP ages from the Cerro Negro District
(Universidad de Barcelona, 2014-06)
The Patagonian basement rocks are dominated by Precambrian to Early Paleozoic metamorphic rocks intruded by Paleozoic granitoids. Recently discovered basement rocks in the Cerro Negro District are characterized ...
Huevos de Saurópodos del Aptiano–albiano, formación cerro Barcino (Patagonia, Argentina): un enigma paleoambiental y paleobiológicoSauropod eggs from the aptian–albian cerro Barcino formation, Chubut (Patagonia, Argentina): a paleoenvironmental and paleobiological enigma
(Asociacion Paleontologica Argentina, 2013)
Para efectuar una interpretación paleobiológica del primer material oológico hallado en la provincia de Chubut, inferir su escenario paleoambiental y compararlo con huevos de dinosaurios de otras áreas, se describen ...
Litoestratigrafía, bioestratigrafía y correlaciones de las sucesiones sedimentarias del Neoproterozoico-Cámbrico del Cratón del Río de La Plata (Uruguay y Argentina)Litostratigraphy, biostratigraphy and correlations of the sedimentary sucessions of the Neoproterozoic-Cambrian of the Rio de la Plata Craton (Uruguay and Argentina)
(Asociación Argentina de Sedimentología, 2005-12)
Se compara la lito- bio- y quimioestratigrafía de sucesiones sedimentarias del Neoproterozoico del Cratón del Río de la Plata, a saber: Grupo Arroyo del Soldado (GAS), Uruguay y Grupo Sierras Bayas - Formación Cerro Negro ...
Cyathealean Antarctic ferns from the Aptian Cerro Negro Formation: Rafaherbstia nishidai gen. et sp. nov. and associated fertile organs
(Elsevier Science, 2018-07)
New remains corresponding to Cyathealean tree ferns are described for the Aptian Cerro Negro Formation at Byers Peninsula, Livingston Island (South Shetland Islands, Antarctica). A new genus and species, Rafaherbstia ...