Felinoceras constrictum (FOSSIL) Kröger & J. Evans, 2011 †
Rioceras consuetum (FOSSIL) (Sardeson, 1896 †)
Rioceras dartoni (FOSSIL) Flower, 1964 †
Rioceras depressum (FOSSIL) Flower, 1964 †
Rioceras escandei (FOSSIL) (Thoral, 1935 †)
Rioceras expansum (FOSSIL) Flower, 1964 †
Rioceras fusiforme (FOSSIL) Flower, 1964 †
Rioceras lobatum (FOSSIL) Flower, 1964 †
Rioceras nondescriptum (FOSSIL) Flower, 1964 †
Rioceras tubulare (FOSSIL) Flower, 1964 †
Rioceras wellsi (FOSSIL) Flower, 1964 †