Title:Edades U-Pb en circones de la formación Mata Amarilla (Cretácico), Patagonia Austral, Argentina: Su relación con la evolución de la Cuenca Austral / U-Pb zircon constraints on the age of the Cretaceous Mata Amarilla formation, southern Patagonia, Argentina: Its relationship with the evolution of the Austral Basin
Title:Cephalobellus lobulata n. sp. (Oxyurida: Thelastomatidae) a Parasite of Neocurtilla claraziana Saussure (Orthoptera: Gryllotalpidae) from Argentina
Title:Description of Maritrema formicae sp. nov. (Digenea, Microphallidae) parasitic in the kelp gull, Larus dominicanus, from the Patagonian coast, Argentina