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One of the largest silicic igneous provinces of the world, the Chon Aike Volcanic Province, is related to an extensional regime developed in Patagonia in Early to Middle Jurassic times. This work presents new geochemical...

The Precordillera terrane (Cuyania) in western Argentina is commonly accepted as an exotic fragmentderived from Laurentia in the Early Paleozoic. Evidence supporting such an interpretation is manly basedon similarities i...

The fossils of the India Muerta Formation (Neogene, Tucumán Province, Northwestern Argentina) include several vertebrate groups, mainly metatherian, xenarthran, and notoungulate mammals. Nevertheless, these remains have...

In their philosophical works Alfred North Whitehead and John Dewey criticize philosophical conceptions that consider the stability of the outer world to be a basic characteristic of reality and conceive of change only as...

The Ampullariidae (‘apple snails’) are freshwater caenogastropods of probable Gondwanan origin that are now indigenously distributed in tropical and temperate zones of southern North America, South America, Africa, I...

El objetivo del presente estudio fue determinar por tercer año consecutivo, la falla en la transferencia de inmunidad pasiva en terneras de lechería en la Región Huetar Norte de Costa Rica. Los datos presentados corre...

Introduction and aims: The aim of this study was to collect and analyze country-specific information on corporate dental chains in the European Union, with a particular focus on their prevalence, organizational structure...

La Formación Vinchina fue depositada entre los 16 y 8 Ma en una cuenca de antepaís fracturada del noroeste de la Argentina, registrando sedimentación en ambientes continentales, alcanzando un espesor de 6 kilómetros....

Peridotite mantle xenoliths collected north of Gobernador Gregores, Patagonia, affected by cryptic and modal metasomatism bear melt pockets of unusually large size. Melt pockets consist of second generation olivine (ol2)...

Panochthus greslebini Castellanos (= P. rochai Paula Couto) tem sido tradicionalmente considerado um táxon endêmico do NE de Brasil. No entanto, nos últimos anos houve registros, ainda que com determinações duvidosa...

Through our research at Bahía Yendegaia on the Beagle Channel in southernmost Patagonia - the ancestral territory of the Yagán people - we discovered the first rock art site on Tierra del Fuego Island. The geometric vi...

Recientes investigaciones acerca de la arqueología de sociedades agroalfareras del territorio que actualmente ocupa la provincia de Córdoba, señalan que existió un proceso de diversificación e intensificación difer...

Variability of population of Kentropyx from northern Argentina was studied using characters of lepidosis and coloration. A subspecific taxonomic level, Kentropyx viridistriga lagartija is proposed for Kentropyx lagartija...