Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Archaegastropoda see Order Archaeogastropoda Thiele, 1925
         Superfamily Trochacea see Superfamily Trochoidea Rafinesque, 1815
           Family Turbinidae Rafinesque, 1815 - turban snails
             Subfamily Astraeinae Davies, 1935 (1854) see Subfamily Turbininae Rafinesque, 1815
               1 Genus Astraea Röding, 1798
               2 Genus Astralium Link, 1807
               3 Genus Bolma Risso, 1826
               4 Genus Guildfordia Gray, 1850