Zilchogyra hyltonscottae W.K. Weyrauch, 1965
Radiodiscus iheringi (C.M.F. Ancey, 1899)
Radiodiscus kuscheli M.I. Hylton-Scott, 1957
Lilloiconcha laevigata B. Hausdorf, 2005
Radiodiscus lateumbilicatus W.K. Weyrauch, 1966
Trochogyra leptotera (A. de Rochebrune& J.F. Mabille, 1882)
Helicodiscus lirellus L.R. Hubricht, 1975
Lilloiconcha lopezi Araya & Aliaga, 2015
Radiodiscus magellanicus (E.A. Smith, 1881)
Radiodiscus microhelix F. Haas, 1951
Radiodiscus millecostatus H.A. Pilsbry & J.H. Ferriss,1906
Lucilla miocaenica (FOSSIL) M. Harzhauser & al.,2015 †
Zilchogyra miocenica (FOSSIL) F.A.W. Miquel & Rodriguez,2016 †
Helicodiscus multidens L.R. Hubricht, 1962
Helicodiscus notius L.R. Hubricht, 1962
Helicodiscus nummus E.G. Vanatta, 1899
Helicodiscus parallelus (T. Say, 1817)
Radiodiscus patagonicus (H.H. Suter, 1900)
Zilchogyra paulistana (M.I. Hylton-Scott, 1973)
Radiodiscus peruvianus A.J. Crawford, 1939
Zilchogyra peterseni W.K. Weyrauch, 1965
Chanomphalus pilsbryi (H.B. Baker, 1922)
Radiodiscus pilsbryi M.I. Hylton-Scott, 1957
Zilchogyra pleurophora (FOSSIL) (S. Moricand, 1846 †)
Radiodiscus proameri H.B. Baker, 1930
Radiodiscus promatensis F.A.W. Miquel, R. Ramírez& J.W. Thomé, 2004
Helicodiscus punctatellus J.P.E. Morrison, 1942
Helicodiscus ramsdeni H.A. Pilsbry, 1942
Retidiscus reticulatus Á.L.M. da Fonseca& J.W. Thomé, 1995
Radioconus riochcoensis A.J. Crawford, 1939
Hebetodiscus riparbellii F.L. Giusti, 1976
Hydrophrea roemeri (FOSSIL) (A. Andreae, 1902 †)
Helicodiscus salmonaceus H. Hemphill, 1890
Helicodiscus saludensis J.P.E. Morrison, 1937
Radiodiscus sanrafaelensis (FOSSIL) Turazzini & F.A.W. Miquel,2014 †