Stylonema trochleatum (FOSSIL) (Münster, 1840 †)
Tyrsoecus andinus (FOSSIL) Bonarelli, 1921 †
Tyrsoecus multinodosa (FOSSIL) Yin & E.L. Yochelson,1983 †
Tyrsoecus obtusus (FOSSIL) F. Haas, 1953 †