Agathamminidae (basis of record)
Anischiidae Fleutiaux, 1936 accepted as Eucnemidae Eschscholtz, 1829 (basis of record)
Antagmidae † (basis of record)
Aphelaspididae † (basis of record)
Boultoniidae Skinner & Wilde, 1954 † (basis of record)
Carpocrinidae (basis of record)
Chernyshinellidae (basis of record)
Conokephalinidae † (basis of record)
Globivalvulinidae Reitlinger, 1950 † (basis of record)
Kahlerinidae Leven, 1963 † accepted as Verbeekinidae Staff & Wedekind, 1910 † (basis of record)
Laudonocrinidae (basis of record)
Orthovertellidae (basis of record)
Pirasocrinidae (basis of record)
Pterocephalidae † accepted as Pterocephaliidae Kobayashi, 1935 † (basis of record)
Punctospiferidae † (basis of record)
Scaphelasmatidae Rowell, 1965 † (basis of record)