Archaeogastropoda Thiele, 1925
Addisoniidae Dall, 1882
Bathyphytophilidae Moskalev, 1978
Caymanabyssiidae Marshall, 1986
Cloristellidae
Lepetellidae Dall, 1881
Pseudococculinidae Hickman, 1983
Pyropeltidae McLean & Haszprunar, 1987