Agathotanaidae Lang, 1971 (current name source)
Anarthruridae Lang, 1971 (current name source)
Apseudellidae Guţu, 1972 (current name source)
Apseudidae Leach, 1814 (current name source)
Colletteidae Larsen & Wilson, 2002 (current name source)
Cretitanaidae Schram, Sieg & Malzahn, 1986 † (current name source)
Gigantapseudidae Kudinova-Pasternak, 1978 (current name source)
Jurapseudidae Schram, Sieg & Malzahn, 1986 † (current name source)
Kalliapseudidae Lang, 1956 (current name source)
Leptocheliidae Lang, 1973 (current name source)
Leptognathiidae Lang, 1976 (current name source)
Metapseudidae Lang, 1970 (current name source)
Neotanaidae Lang, 1956 (current name source)
Niveotanaidae Polz, 2005 † (current name source)
Nototanaidae Sieg, 1976 (current name source)
Numbakullidae (basis of record)
Numbakullidae (current name source)
Pagurapseudidae Lang, 1970 (current name source)
Pagurapseudopsididae Guţu, 2006 (current name source)
Pagurapseudopsididae Guţu, 2006 (basis of record)
Parapseudidae Guţu, 1981 (current name source)
Paratanaidae Lang, 1949 (current name source)
Pseudotanaidae Sieg, 1976 (current name source)
Pseudozeuxidae Sieg, 1982 (current name source)
Sphyrapodidae Guţu, 1980 (current name source)
Sphyrapodidae Guţu, 1980 (basis of record)
Tanaellidae Larsen & Wilson, 2002 (current name source)
Tanaidacea (awaiting allocation) (current name source)
Tanzanapseudidae Bacescu, 1975 (current name source)
Typhlotanaidae Sieg, 1986 (current name source)
Whiteleggiidae Guţu, 1972 (current name source)