Animalia
Abaciasagitta Bieri, 1991
Accedosagitta Kassatkina, 1971
Adhesisagitta Bieri, 1991
Amiskwiidae Walcott, 1911
Bathybelidae Bieri, 1989
Bathybelosidae Bieri, 1989
Bathyspadellidae
Demisagitta Bieri, 1991
Eognathacantha Chen & Huang, 2002
Eoserratosagitta Doguzhaeva, Mutvei & Mapes, 2002
Eucaecosagitta Kasatkina, 2003
Eukrohniidae Tokioka, 1965
Gephyrospadella Salvini-Plawen, 1986
Heterokrohniidae Casanova, 1985
Krohnitelldae
Krohnittellidae Bieri, 1989
Krohnittidae Tokioka, 1965
Oculosagitta Bieri, 1991
Protosagitta Hu, 2002
Pterokrohniidae Bieri, 1991
Pterosagittidae Tokioka, 1965
Sagitella Blainville, 1827
Sagittella Blainville, 1827
Sagittidae Claus & Grobben, 1905
Spadellidae Tokioka, 1965
Tenuisagitta Bieri, 1991
Titerina Kraft & Mergl, 1989
Tokiokaispadellidae
Torquatoridae
