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Mostrando ítems 11-20 de 88
Upper Cambrian/Lower Ordovician conodont and graptolite records in the Lari section, Salar del Rincón, Puna of Salta, Argentina
(Asociación Paleontológica Argentina, 2013-07)
Graptolites and trilobites from the Eusebio Ayala Formation (Hirnantian?–early Llandovery), Paraná Basin, eastern Paraguay
(John Wiley & Sons Ltd, 2013-04)
A low-diversity graptolite fauna from the upper part of the Eusebio Ayala Formation exposed in the intracratonic Paraná Basin of eastern Paraguay is reported herein. The sections studied are composed dominantly of red ...
Trilobites and graptolites from the Vargas Peña Formation (Early Silurian), Paraná Basin, eastern Paraguay
(Muséum d´historie Naturelle de Genève, 2012-08)
Early Silurian trilobites and graptolites from the Vargas Peña Formation of the western Paraná Basin are described. The studied material comes from two successions (San Fernando and Galeano quarries) on the southwestern ...
Late tremadocian graptolites from the Mojotoro Range, Argentine Eastern Cordillera
(Instituto Superior de Correlación Geológica, 2003)
The aim of this contribution is to make known a graptolite assemblage from the Upper Tremadocian coming from the Mojotoro Range on the southeast part of the Argentine Eastern Cordillera (Figure 1a,b). The fossiliferous ...
Testing phyllogenetic relationships of Floian (Ordovician) graptolite records from Argentina through cladistic analysis
(Asociacion Paleontologica Argentina, 2015-10)
The analysis of two-stiped dichograptids, largely of baltograptid and expansograptid taxa of the family Didymograptidae from the Floian of northwestern Argentina, provides insight into the evolutionary relationships of ...
Early–Middle Ordovician Graptolites from the Argentine Puna: Quantitative Paleobiogeographic Analysis Based on a Systematic RevisionGraptolitos del ordovícico temprano–medio de la puna argentina: Análisis paleobiogeográfico cuantitativo basado en una revisión sistemática
(Asociación Paleontológica Argentina, 2020-12)
. La revisión taxonómica actualizada de los graptolitos del Ordovícico Temprano–Medio de la Puna Oriental de Argentina permite describir por primera vez Sigmagraptus praecursor, Baltograptus extremus, B. geometricus, B. ...
The Ordovician Quebrada Grande Formation, Cordón de Lila (Antofagasta Region, northern Chile): stratigraphicand paleogeographic significance
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2007)
Graptolite-trilobite biostratigraphy in the Santa Victoria area, northwestern Argentina. A key for regional and worldwide correlation of the Lower Ordovician (Tremadocian-Floian)
(Asociacion Paleontologica Argentina, 2015-10)
New graptolite-trilobite records provide relevant information for the biostratigraphic framework of the lower Paleozoic in western Gondwana. Aorograptus victoriae (T. S. Hall), together with Adelogratus cf. A. altus Williams ...
Presencia de rocas ordovicianas en el Altiplano (SE del Perú) con registro del género Diplograptus M'Coy (Graptolithina)
(Sociedad Geológica del PerúPE, 2002)
Las sedimentitas Ordovicianas al SE del Perú, conforman el núcleo de la cordillera andina oriental y han sido designadas como Gpo.San José definida litológicamente por una intercalación de pizarras, limo litas y limoarcilitas ...