TAXONOMÍA DE LOS GASTERÓPODOS CUATERNARIOS DE ARGENTINA 101 TAXONOMÍA DE LOS GASTERÓPODOS TERRESTRES DEL CUATERNARIO DE ARGENTINA Sergio Eduardo MIQUEL1,2 y Marina Laura AGUI- RRE1,3 1 CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas). 2 Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Av. Án- gel Gallardo 470, 1405 Ciudad Autónoma de Buenos Aires, Argentina; sems-
[email protected] 3 Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata; Edificio Institutos, Laboratorios y Cátedras, calle 64 Nº 3, 1900 La Plata, Ar- gentina;
[email protected] Miquel, S. E. & Aguirre, M. L. 2011. Taxonomía de los gasterópodos terrestres del Cuaternario de Argentina. [Taxonomy of terrestrial gastropods from the Quaternary of Argentina.] Revista Española de Paleontología, 26 (2), 101-133. ISSN 0213-6937. ABSTRACT This systematic review synthesizes our updated knowledge of 33 species and subspecies of Stylomatophoran gastropods, which belong to the genera Gastrocopta, Succinea, Radiodiscus, Retidiscus, Rotadiscus, Cecilioides, Austroborus, Megalobulimus, Bulimulus, Discoleus, Naesiotus, Plagiodontes, Spixia, Scolodonta, Miradiscops and Epiphragmophora. We provide published and unpublished records of the terrestrial molluscan taxa and a critical review, including data from the most important collections deposited in institutions from Argentina and abroad. All the taxa described have modern representatives; only two, Succinea rosariensis and Scolodonta argentina, still require confirmation regarding their taxonomic validity. The genera with confirmed older than Quaternary records are Austroborus, Megalobulimus, Radiodiscus, Rotadiscus and Succinea, which occur since the Paleoge- ne. Regarding the modern geographical distribution, well known records involve part of Argentina (Subtropical and Pampean Dominia of the Guayanian-Brazilian Subregion and the Central Dominion of the Andean Subre- gion, both in the Neotropical Region).