Aglesiinae Muir-Wood & Cooper, 1960 † (basis of record)
Anechinotsia Waterhouse, 2024 † (original description)
Anechinotsia anotos (Briggs in Waterhouse et al., 1983) † (new combination reference)
Aulostegidae Muir-Wood & Cooper, 1960 † (taxonomy source)
Aulostegoidea Muir-Wood & Cooper, 1960 † (taxonomy source)
Austrothaerus Waterhouse, 2010 † (basis of record)
Austrothaerus randsi (Hill, 1950) † (additional source)
Carilya Archbold, 2001 † (basis of record)
Carilya miniliensis (Coleman, 1957) † (additional source)
Colemanosteges Waterhouse, 2002 † (basis of record)
Echinostegidae Muir-Wood & Cooper, 1960 † (taxonomy source)
Institelloidea Muir-Wood & Cooper, 1960 † (basis of record)
Lakismatia Waterhouse, 2010 † (basis of record)
Lakismatia lakismatos (Briggs, 1986) † (basis of record)
Lakismatia sparsispinosa (Briggs, 1986) † (basis of record)
Lipanteris Briggs in Waterhouse & Briggs, 1986 † (taxonomy source)
Lipanteris sulcata (Waterhouse, 2015) † (new combination reference)
Megasteges Waterhouse, 1975 † (taxonomy source)
Reedoconcha Kotlyar, 1964 † (basis of record)
Rhamnariidae Muir-Wood & Cooper, 1960 † (basis of record)
Saeptathaerus Waterhouse, 2002 † (basis of record)
Saeptathaerus acanthophorus (Fletcher, 1945) † (new combination reference)
Saeptathaerus homevalensis (Briggs in Waterhouse et al., 1983) † (new combination reference)
Scacchinelloidea Licharew, 1928 † (basis of record)
Septasteginae Waterhouse, 2002 † (basis of record)
Taeniothaerinae Waterhouse, 2002 † (basis of record)
Taeniothaerus Whitehouse, 1928 † (additional source)
Taeniothaerus lakismatos Briggs, 1986 † accepted as Lakismatia lakismatos (Briggs, 1986) † (additional source)
Taeniothaerus subquadratus (Morris, 1845) † (additional source)
Taeniothaerus subquadratus quadratus Waterhouse, 2024 † (original description)
Tschernyschewiidae Muir-Wood & Cooper, 1960 † (additional source)