Busycon tropicalis (FOSSIL) E.J. Petuch, 1994 †
Busycon tuberculatus (FOSSIL) (T.A. Conrad, 1840 †)
Busycon tudiculatum (FOSSIL) (W.H. Dall, 1890 †)
Pyruella turbinalis (FOSSIL) E.J. Petuch, 1982 †
Turrifulgur turriculus (FOSSIL) E.J. Petuch, 1988 †
Pyruella waltfrancei (FOSSIL) E.J. Petuch, 1994 †
Sinistrofulgur yeehaw (FOSSIL) E.J. Petuch, 1994 †