First U-Pb SHRIMP age of the Hauterivian stage, Neuquén Basin, Argentina
Keywords: بیواستراتیگرافی; U-Pb SHRIMP geochronology; Biostratigraphy; Lower Cretaceous; Hauterivian; Neuquén Basin; Tethys; GeocronologÃa U-Pb SHRIMP; BioestratigrafÃa; Cretácico inferior; Hauteriviano; Cuenca Neuquina; Tethys;