Los Hyolitha (Mollusca?) del Paleozoico superior de la cuenca Tepuel-Genoa, provincia del Chubut, Argentina

María A. Pagani, Nora Sabattini


Four species of Hyolithes Eichwald from the Lower Permian are described and figured: Huoíithe« amosi González and Sabattini, Hyolithes sp. 1, Hyolithes sp. 2 from the Tuberculatella Zone and Hyolithcs sp. 3 from the Neochonetes Zone. The genus Hyolithes is known from other austral and boreal areas but the Hyolitha species from the Tepuel-Genoa Basin are endemic.

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