Agathotanaidae Lang, 1971 (taxonomy source)
Agathotanaini Sieg, 1986 accepted as Agathotanaidae Lang, 1971 (taxonomy source)
Anarthruridae Lang, 1971 (taxonomy source)
Anthracocaridae † accepted as Anthracocarididae Brooks, 1962 emend. Schram, 1979 † (taxonomy source)
Anthracocaridomorpha † (original description)
Anthracocaris Calman, 1933 † (taxonomy source)
Apseudellidae Gutu, 1972 (taxonomy source)
Apseudes Leach, 1814 (taxonomy source)
Apseudidae Leach, 1814 (taxonomy source)
Apseudomorpha (original description)
Cirratodactylidae Gardiner, 1973 accepted as Cirratodactylinae Gardiner, 1973 accepted as Kalliapseudidae Lang, 1956 (taxonomy source)
Cryptocaridae Sieg, 1980 † accepted as Cryptocarididae Sieg, 1980 † accepted as Tesnusocarididae Brooks, 1955 † (original description)
Cryptocarididae Sieg, 1980 † accepted as Tesnusocarididae Brooks, 1955 † (original description)
Cryptocaris Schram, 1974 † accepted as Eucryptocaris Schram, 1989 † (taxonomy source)
Dikonophora accepted as Tanaidomorpha (taxonomy source)
Gigantapseudidae Kudinova-Pasternak, 1978 (taxonomy source)
Kalliapseudidae Lang, 1956 (taxonomy source)
Leptognathiidae Sieg, 1976 (taxonomy source)
Leviapseudidae Sieg, 1980 accepted as Leviapseudinae Sieg, 1983 (original description)
Metapseudidae Lang, 1970 (taxonomy source)
Monokonophora accepted as Apseudoidea Leach, 1814 (source of synonymy)
Neotanaidae Lang, 1956 (taxonomy source)
Neotanaidomorpha accepted as Neotanaoidea Sieg, 1980 (original description)
Neotanais Beddard, 1886 (taxonomy source)
Nototanaidae Sieg, 1976 (taxonomy source)
Ophthalmapseudes Glaessner, 1962 † (taxonomy source)
Ophthalmapseudidae Sieg, 1980 accepted as Anthracocarididae Brooks, 1962 emend. Schram, 1979 † (original description)
Ophthalmapseudoidea Sieg, 1980 † accepted as Anthracocaridomorpha † (original description)
Pagurapseudidae Lang, 1970 (taxonomy source)
Paratanaidae Lang, 1949 (taxonomy source)
Paratanais Dana, 1853 (taxonomy source)
Paratanaoidea Lang, 1949 (taxonomy source)
Pseudotanaidae Sieg, 1976 (taxonomy source)
Synapseudidae Gutu, 1972 accepted as Synapseudinae Gutu, 1972 (taxonomy source)
Tanaidacea (taxonomy source)
Tanaidæ Dana, 1849 accepted as Tanaididae Nobili, 1906 (taxonomy source)
Tanaidomorpha (original description)
Tanais Latreille, 1831 (taxonomy source)
Tanaoidea Dana, 1849 accepted as Tanaidoidea Nobili, 1906 (original description)
Tanapseudidae Bacescu, 1978 accepted as Tanapseudinae Bacescu, 1978 (taxonomy source)
Tanzanapseudidae Bacescu, 1975 (taxonomy source)

 Taxonomy

 for Neotanaidomorpha

initially included Neotanaidae [details]

 Taxonomy

 for Ophthalmapseudoidea Sieg, 1980 †

originally included Ophthalmapseudidae [details]

 Taxonomy

 for Paratanaoidea Lang, 1949

originally included Agathotanaidea [sic], Anarthruridae, Leptognathiidae, Nototanaidae, Paratanaidae, and ... [details]

 Taxonomy

 for Tanaidomorpha

initially included Tanaoidea and Paratanoidea [sic] [details]

 Taxonomy

 for Tanaoidea Dana, 1849

initially included Tanaidae [details]