Hyolithes pallidus (FOSSIL) Cobbold, 1931 † UK, England, Shropshire
Hyolithes penkillensis (FOSSIL) Reed, 1909 †
Nevadotheca princeps (FOSSIL) (Billings, 1872 †) Mexico, Sonora, Pitiquito
Hyolithes sondai (FOSSIL) Resser & Endo, 1937 †
Hyolithes tenuis (FOSSIL) Resser & Endo, 1937 †
Nevadotheca whitei (FOSSIL) (Resser, 1938 †) Mexico, Sonora, Pitiquito