Anomalodesmata is an superorder of saltwater clams, marine bivalve molluscs. This grouping was formerly recognised as a taxonomic subclass. It is called a superorder in the current World Register of Marine Species, despite having no orders, to parallel it with sister taxon Imparidentia, which does have orders.
Description The shells of species in this order are of equal size, as are the muscles that hold them closed, and the margins at the hinges are thickened. The margins of the mantle are also fused, and there is only a single hinge tooth, if any.
Families In 2010, a new proposed classification system for the Bivalvia was published in Malacologia by Bieler, Carter & Coan revising the classification of the Bivalvia, including the order Anomalodesmata.Bieler, R., Carter, J.G. & Coan, E.V. (2010) Classification of Bivalve families. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), Nomenclator of Bivalve Families. Malacologia 52(2): 1-184 The following tree is their info which has been updated with the latest information from the World Register of Marine Species:
The use of † indicates taxa that are extinct.
Order: Anomalodesmata Superfamily: Clavagelloidea Family: Clavagellidae Family: Penicillidae Superfamily: Cuspidarioidea Family: Cuspidariidae Family: Halonymphidae Family: Protocuspidariidae Family: Spheniopsidae Superfamily: Myochamoidea Family: Cleidothaeridae Family: Myochamidae Superfamily: Pandoroidea Family: Lyonsiidae Family: Pandoridae Superfamily: Pholadomyoidea Family: †Arenigomyidae Family: †Margaritariidae Family: Parilimyidae Family: Pholadomyidae Family: †Ucumariidae Superfamily: Poromyoidea Family: Cetoconchidae Family: Poromyidae Superfamily: Thracioidea Family: †Burmesiidae Family: Clistoconchidae Family: Laternulidae Family: Periplomatidae Family: Thraciidae Superfamily: Verticordioidea Family: Euciroidae Family: Lyonsiellidae Family: Verticordiidae
References
Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979
External links