[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Bivalvia Linnaeus, 1758 - bivalves
       Family Ostreidae Rafinesque, 1815 - true oysters
         1 Genus Ostrea Linnaeus, 1758 - flat oyster
         2 Genus Crassostrea Sacco, 1897
         3 Genus Ostreola Monterosato, 1884
         4 Genus Saccostrea Dollfus & Dautzenberg, 1920