Vetigastropoda Salvini-Plawen, 1980 - archaeogastropods s.l.
   Family Scissurellidae Gray, 1847
     .1 Genus Incisura Hedley, 1904
     .2 Genus Sinezona Finlay, 1927
     .3 Genus Thieleella K. Bandel, 1998
     1 ?Subfamily Temnocinclinae McLean, 1989 see Family Sutilizonidae McLean, 1989
     2 ?Subfamily Sutilizoninae McLean, 1989 see Family Sutilizonidae McLean, 1989
     3 Subfamily Scissurellinae Gray, 1847
     4 Subfamily Depressizoninae Geiger, 2003
     5 Subfamily Larocheinae Finlay, 1927