Articles

Foreword

A. C. (Alberto Carlos) Riccardi

79

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Late Triassic to Early Jurassic sedimentation in northern Neuquén Basin, Argentina: Tectosedimentary Evolution of the First Transgression

Sílvia Lanes

81

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Tracking sea bed topography in the Jurassic. The Lotena Group in the Sierra de la Vaca Muerta (Neuquén Basin, Argentina)

Carlos Zavala

107

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High frequency subtidal-peritidal cycles of the Callovian Calabozo Formation (Neuquén Basin, Western Argentina): Preliminary approach

Ricardo Manuel Palma, Gabriela Lo Forte, Mohammed Medhli, Ricardo D. Piethé

119

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Hierarchy of bounding surfaces in aeolian sandstones of the Jurassic Tordillo Formation (Neuquén Basin, Argentina)

Carlos Zavala, Hernán Maretto, M. Di Meglio

133

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Chemostratigraphy of the Pliensbachian, Puesto Araya Formation (Neuquén Basin, Argentina)

Susana A. Valencio, Mariana Celina Cagnoni, Adriana María Ramos, A. C. (Alberto Carlos) Riccardi, Héctor Osvaldo Panarello

147

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Isotopic characterization of Jurassic evaporites. Aconcagua-Neuquén Basin, Argentina

Gabriela Lo Forte, Federico Ortí Cabo, Laura Rosell Ortíz

155

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Biofacies analysis of Hettangian-Sinemurian bivalve/brachiopod associations from the Neuquén Basin (Argentina)

Susana Ester Demborenea, Miguel Óscar Manceñido

163

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First teuthid cephalopod from the Lower Jurassic of South America (Neuquén Basin, Argentina)

A. C. (Alberto Carlos) Riccardi

179

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Heterochrony in Middle Jurassic species of Gryphaea (Ostreoidea, Gryphaeidae) from southern South America

Alfonso Rubilar

185

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Influence of a biohermal belt on the lacustrine sedimentation of the Cañadón Asfalto Formation (Upper Jurassic, Chubut province, Southern Argentina)

Nora Graciela Cabaleri, Claudia Armella

205

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