Bellerophon incisus J. M. Clarke, 1885 † accepted as Phragmosphaera incisa (J. M. Clarke, 1885) † (new combination reference)
Carinaropsis ithagenia J. M. Clarke, 1904 † accepted as Phragmosphaera ithagenia (J. M. Clarke, 1904) † (new combination reference)
Crenistriella Knight, 1945 † (original description)
Liljevallospira Knight, 1945 † (original description)
Oxydiscus Koken, 1889 † accepted as Tropidodiscus F. B. Meek & Worthen, 1866 † (source of synonymy)
Patellilabia Knight, 1945 † (original description)
Patellilabia tentoriolum Knight, 1945 † (original description)
Phragmosphaera Knight, 1945 † (original description)
Phragmosphaera chautauquae J. M. Clarke, 1904 † (additional source)
Phragmosphaera incisa (J. M. Clarke, 1885) † (basis of record)
Phragmosphaera ithagenia (J. M. Clarke, 1904) † (basis of record)
Phragmosphaera miranda Knight, 1945 † accepted as Phragmosphaera lyra (J. Hall, 1859) † (original description)
Phragmosphaera natator (J. Hall, 1861) † (additional source)
Retispira Knight, 1945 † (original description)
Retispira bellireticulata Knight, 1945 † (original description)
Sinuitina Knight, 1945 † (original description)
Sphenosphaera Knight, 1945 † (original description)
Sphenosphaera similis (Ulrich & Scofield, 1897) † (new combination reference)
Sphenosphaera subglobulus (Ulrich, 1897) † (new combination reference)