Bifaxariidae Busk, 1884
Diplonotos confragus Gordon, 1993
Diplonotos continuus Gordon, 1988
Diplonotos corrugatus (Busk, 1884)
Diplonotos costulatus Canu & Bassler, 1930
Diplonotos inornatus (Hayward, 1981)
Diplonotos minus Gordon, 1993
Diplonotos novus (Gordon, 1988)
Diplonotos obesus Gordon, 1993
Diplonotos papillatus (Busk, 1884)
Diplonotos serratus Gordon, 1993
Diplonotos similis Gordon, 1993
Diplonotos sulcatus Gordon, 1993
Diplonotos supplicatus Hayward & Winston, 2011
