Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Subphylum Diasoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758
       Class Pelecypoda Goldfuss, 1820 see Class Bivalvia Linnaeus, 1758
         Subclass Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944
           Genus †Rastellum Faujas-St.-Fond, 1799
             Subgenus †Arctostrea Pervinquiere, 1910