Phylum [Mollusca] Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Order Mytiloida Férussac, 1822 see Order Mytilida Férussac, 1822 Superfamily Ostreacea Rafinesque, 1815 see Superfamily Ostreoidea Rafinesque, 1815 Family Ostreidae Rafinesque, 1815 - true oysters Subfamily Ostreinae Rafinesque, 1815 1 Genus Crassostrea Sacco, 1897