Phylum [Mollusca] Linnaeus, 1758 - molluscs
Class Bivalvia Linnaeus, 1758 - bivalves
Order Mytiloida Férussac, 1822
see Order Mytilida Férussac, 1822
Superfamily Pectinacea Rafinesque, 1815, nom. illeg.
see Superfamily Pectinoidea Rafinesque, 1815
Family Spondylidae Gray, 1826 - thorny oysters
Genus Spondylus Linnaeus, 1758
[Subgenus Spondylus (Eleutherospondylus) orth. inval.]
see Subgenus Eleutherospondylos Dunker, 1882