Mollusca Linnaeus, 1758 - molluscs
see Phylum Mollusca Linnaeus, 1758
Gastropoda Cuvier, 1795
see Class Gastropoda Cuvier, 1795
Clade Caenogastropoda Cox, 1960
see Superorder Caenogastropoda Cox, 1960
Clade Sorbeoconcha Ponder & Lindberg, 1997
see Order Sorbeoconcha Ponder & Lindberg, 1997
Clade Hypsogastropoda Ponder & Lindberg, 1997
see Suborder Hypsogastropoda Ponder & Lindberg, 1997
"Group" Ptenoglossa Gray, 1853
see Infraorder Ptenoglossa Gray, 1853
Superfamily Triphoroidea Gray, 1847
Family Newtoniellidae Korobkov, 1955
1 Subfamily Newtoniellinae Korobkov, 1955
2 Subfamily Adelacerithiinae Marshall, 1984
3 Subfamily Ataxocerithiinae Ludbrook, 1957, nom. inval.
4 Subfamily Eumetulinae Golikov & Starobogatov, 1975
5 Subfamily Laeocochlidinae Golikov & Starobogatov, 1987