Superfamily: CRASSATELLACEA [CRASSATELLOIDEA] A. Ferussac, 1822[1844]

(3-4-4-0-10-0-0-0-0-0-0-0-0)
Ref. Abbott, 1974 p 480
Bernard, 1983 p 36
Keen, 1971 p 103
Lindner, 1977 p 109
Vaught, 1989 p xi,128
Vokes, 1980 p 121
Wagner, 1984 p 62