†FAMILY CALANTICIDAE ZEVINA, 1978 (CRETACEOUS–RECENT)

Diagnosis: Number of plates highly variable (Jones & Hosie, 2009); usually with three pairs of larger laterals (rostrolatus, upper latus and carinolatus), often with subrostrum and subcarina; inframedian latus probably absent.

Comment: Monophyletic in molecular analyses.

† Aurivillialepas Newman, 1980 (Miocene-Recent) (five species)

† Calantica Gray, 1825 (Cretaceous–Recent) (17 species)

Crosnieriella Jones, 1998 (one species)

† Euscalpellum Hoek, 1907 (Eocene–Recent) (seven species)

† Gruvelialepas Newman, 1980 (Pleistocene–Recent) (three species)

Newmanilepas Zevina & Yakhontova, 1987 (one species)

†† Pachyscalpellum Buckeridge, 1991 (Cretaceous) (three species)

Paracalantica Utinomi, 1958 (one species)

Pisiscalpellum Utinomi, 1958 (one species)

† Scillaelepas Seguenza, 1872 (Miocene-Recent) (six species)

† Smilium Gray, 1825 (15 species)

Zeascalpellum Buckeridge, 1983 (Eocene) (one species)