Phylum Mollusca Linnaeus, 1758 - molluscs
Class Bivalvia Linnaeus, 1758 - bivalves
Subclass Pteriomorphia Beurlen, 1944
see Superorder Pteriomorphia Beurlen, 1944
Order Pteriida Newell, 1965
Suborder Pinnina Leach, 1819 [monotypic]
see Superfamily Pinnoidea Leach, 1819
Superfamily Pinnoidea Leach, 1819 [monotypic]
Family Pinnidae Leach, 1819 - pen clams
Genus Pinna Linnaeus, 1758
Subgenus Cyrtopinna Mörch, 1853