Sueroceras irregulare Riccardi and Sabattini (Nautiloidea) from the Upper Paleozoic of the Cordón del Naranjo, the Precordillera of San Juan Province, Argentine

Abstract

?Sueroceras irregulare Riccardi and Sabattini (Nautiloidea) from the Upper Paleozoic of the Cordón del Naranjo, the Precordillera of San Juan Province, Argentine?. An exceptionaly well preserved specimen of the nautilid Sueroceras irregulare Riccardi and Sabattini is described and illustrated. Its records extends the geographic and stratigraphic range of the species in the Cordón del Naranjo (Ansilta Formation), Province of San Juan, Argentina.