Eoangyomphalus klapperi (FOSSIL) Blodgett & Johnson,1992 †
Lentipleura klippsteinii (FOSSIL) (G.A. Goldfuss, 1844 †)
Baylea knighti (FOSSIL) Weller, 1929 †
Umbotropis kokeni (FOSSIL) (E.F.R.K. Koken, 1889 †)
Balbinipleura koninckii (FOSSIL) K. Bandel & Frýda, 1996 †
Nodospira krawczynskii (FOSSIL) Heidelberger & al.,2009 †
Balbinipleura krawczynskii (FOSSIL) Frýda & Blodgett, 2004 †
Baylea kuesi (FOSSIL) Batten, 1995 †
Ananias labrectus (FOSSIL) Batten, 1989 †
Zalozone lacunata (FOSSIL) E.G. Linsley, 1968 †
Ananias laevilineata (FOSSIL) Yin & E.L. Yochelson,1983 †
Glabrocingulum laeviliratum (FOSSIL) Chronic, 1952 †
Euryzone laevis (FOSSIL) (F.A. Roemer, 1855 †)
Euryzone latevittata (FOSSIL) (E.F.R.K. Koken, 1889 †)
Conotoma latezonata (FOSSIL) (Lindström, 1884 †)
Neilsonia laticincta (FOSSIL) Batten, 1989 †
Euryzone latitornata (FOSSIL) E.G. Linsley, 1968 †
Mourlonia lativittata (FOSSIL) Girty, 1910 †
Angyomphalus lens (FOSSIL) (J.W. Hall, 1860 †)
Pleurorima leptoconcha (FOSSIL) J. Perner, 1907 †
Calvibembexia lethiersi (FOSSIL) Blodgett & al., 1999 †
Peruvispira lingshuiensis (FOSSIL) Pan, 1985 †
Stenoloron linnarssoni (FOSSIL) (Lindström, 1884 †)
Villmaria linteatus (FOSSIL) (G.A. Goldfuss, 1844 †)
Mourlonia lipara (FOSSIL) J. Perner, 1907 †
Spirovallum liratum (FOSSIL) C.O. Waterhouse, 1963 †
Peruvispira lochinvarensis (FOSSIL) C.O. Waterhouse, 1987 †
Angyomphalus longicostatus (FOSSIL) H. Guo, 1983 †
Devonorhineoderma lonsdalei (FOSSIL) (d'Archiac & de Verneuil,1842 †)
Platyteichum loratum (FOSSIL) C.O. Waterhouse, 1963 †
Collabrina lunulata (FOSSIL) C.O. Waterhouse, 1978 †
Glabrocingulum lupus (FOSSIL) Batten, 1989 †
Mourlonia lyndonensis (FOSSIL) Dickins, 1957 †
Mourlonia macrostoma (FOSSIL) (C.L.F. von Sandberger& C.L.F. von Sandberger, 1853 †)
Glabrocingulum magnum (FOSSIL) A. Nützel & Ketwetsuriya,2016 †