Rhabdostropha minuta (FOSSIL) (Lindström, 1884 †)
Holopella mira (FOSSIL) Winchell, 1863 †
Holopella modesta (FOSSIL) J. Perner, 1903 †
Stylonema modestum (FOSSIL) J. Perner, 1907 †
Holopella monile (FOSSIL) McCoy †
Tyrsoecus multinodosa (FOSSIL) Yin & E.L. Yochelson,1983 †
Loxonema murrayana (FOSSIL) Salter, 1859 †
Loxonema neptunis (FOSSIL) E.A.L. Kittl, 1894 †
Spiroecus nidhoeggi (FOSSIL) McNamara, 1978 †
Loxonema ningxiaensis (FOSSIL) Pan, 1997 †
Loxonema nitida (FOSSIL) Longst, 1924 †
Rhabdostropha obscura (FOSSIL) (J. Donald, 1902 †)
Loxonema obsoleta (FOSSIL) (de Sowerby & Murchison,1839 †)
Tyrsoecus obtusus (FOSSIL) F. Haas, 1953 †
Stylonema oppositum (FOSSIL) J. Perner, 1907 †
Holopella parvula (FOSSIL) J. Perner, 1903 †
Loxonema parvula (FOSSIL) J. Perner, 1903 †
Stylonema parvula (FOSSIL) Frýda & K. Bandel, 1997 †
Loxonema paucicostatum (FOSSIL) Kirchner, 1915 †
Stylonema peramplum (FOSSIL) J. Perner, 1907 †
Loxonema perlonga (FOSSIL) J. Perner, 1907 †
Loxonema perneri (FOSSIL) Longstaff, 1909 †
Loxonema philipii (FOSSIL) Gruber, 1932 †
Loxonema pikensis (FOSSIL) Hyde, 1953 †
Stylonema placidum (FOSSIL) J. Perner, 1907 †
Loxonema planatum (FOSSIL) Longstaff, 1909 †
Loxonema plasi (FOSSIL) Horný, 1953 †
Loxonema plicatissimum (FOSSIL) C. Gemmellaro, 1889 †
Nodoloxonema plusquelleci (FOSSIL) Blodgett & al., 1999 †
Loxonema pollens (FOSSIL) J. Perner, 1903 †
Loxonema polonica (FOSSIL) Gürich, 1896 †
Loxonema postremum (FOSSIL) J.W. Hall, 1883 †
Stylonema potens (FOSSIL) J. Perner, 1907 †
Loxonema praecedens (FOSSIL) J. Perner, 1903 †
Loxonema praeteritum (FOSSIL) Longst, 1909 †