Rhabdostropha primitiva (FOSSIL) Longst, 1924 †
Loxonema propinquum (FOSSIL) J. Perner, 1907 †
Loxonema pseudofasciatum (FOSSIL) J. Donald, 1905 †
Loxonema pseudomorphum (FOSSIL) C. Gemmellaro, 1889 †
Cookiloxa pulchra (FOSSIL) Frýda, 2000 †
Loxonema pupoideum (FOSSIL) C. Gemmellaro, 1889 †
Rhabdostropha quinquecincta (FOSSIL) (Kjerulf, 1865 †)
Loxonema rarecostatum (FOSSIL) Böhm, 1895 †
Loxonema rectangulare (FOSSIL) Spitz, 1907 †
Loxonema reedi (FOSSIL) Longstaff, 1909 †
Holopella regularis (FOSSIL) Lindström, 1884 †
Loxonema renellaeformis (FOSSIL) A. Römer, 1843 †
Stylonema rennoni (FOSSIL) Heidelberger, 2001 †
Clathronema reticulata (FOSSIL) (B. Phillips, 1841 †)
Stylonema robusta (FOSSIL) (J.W. Hall, 1859 †)
Loxonema rude (FOSSIL) J. Perner, 1903 †
Nodoloxonema ruginosum (FOSSIL) (de Koninck, 1881 †)
Loxonema rugosum (FOSSIL) Billings, 1857 †
Loxonema salomonense (FOSSIL) C. Gemmellaro, 1889 †
Loxonema scalarioideum (FOSSIL) (B. Phillips, 1836 †)
Loxonema sellai (FOSSIL) E.A.L. Kittl, 1899 †
Loxonema septentrionale (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Aulacostrepsis simplex (FOSSIL) J. Perner, 1907 †
Loxonema sinuosa (FOSSIL) (J. de C. Sowerby& Murchison, 1839 †)
Loxonema solida (FOSSIL) J.W. Hall, 1859 †
Stylonema solitarium (FOSSIL) J. Perner, 1907 †
Loxonema solvens (FOSSIL) J. Perner, 1907 †
Loxonema spurium (FOSSIL) de Koninck, 1881 †
Rhabdostropha stokei (FOSSIL) Longst, 1909 †
Loxonema strangulatum (FOSSIL) Lindström, 1884 †
Loxonema striatissimum (FOSSIL) Reed, 1897 †
Clathronema striatus (FOSSIL) (d'Eichwald, 1860 †)
Stylonema styloideum (FOSSIL) J. Perner, 1907 †
Loxonema stylum (FOSSIL) Tolmachoff, 1930 †
Loxonema subangulatum (FOSSIL) Öpik, 1953 †