Orthonema tirusum (FOSSIL) Batten, 1985 †
Orthonema tricingulatum (FOSSIL) Erwin, 1988 †
Kazanella volgensis (FOSSIL) (Golowinsky 1868 †)
Orthonema youngianum (FOSSIL) J. Donald, 1889 †
Orthonema zionensis (FOSSIL) A. Nützel, 1998 †