Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Patellogastropoda Lindberg, 1986 see Order Patellogastropoda Lindberg, 1986
       Superfamily Lottioidea Gray, 1840
         Family Lottiidae Gray, 1840 - American limpets
           1 Subfamily Lottiinae Gray, 1840
           2 Subfamily Patelloidinae Chapman & Gabriel, 1923