(Instituto de Fisiografía y Geología, 2001) Gründel, Joachim; Parent, Horacio
Samples of marine Lower and Middle Tithonian gastropods from Picún Leufú, Cañadón de los Alazanes, Cerro La Parva (Neuquén) and Casa Pincheira (Mendoza) have provided three undescribed species. These are: Exelissa? arcuatoconcava nov. sp. (Mendozanus Biozone), Sinuarbullina melehuensis nov. sp. (Zitteli Biozone) and Dicroloma? sp. (Mendozanus Biozone).