Venerida (formerly Veneroida) is an order of mostly saltwater but also some freshwater bivalve molluscs. This order includes many familiar groups such as many clams that are valued for food and a number of freshwater bivalves.
Since the 2000s, the taxonomy currently represented in the World Register of Marine Species (WoRMS) classifies several taxa contained in the former Veneroida into other orders, such as the new Cardiida (for Cardioidea and Tellinoidea) and Carditida (cockles and their allies).
Description Venerids are generally thick-valved, equal-valved and isomyarian (that is, their adductor muscles are of equal size). Three main hinge teeth are characteristic of the subclass Heterodonta, to which this order belongs. Many species are active rather than sessile. However, they tend to be filter feeders, feeding through paired siphons, with a characteristic folded gill structure adapted to that way of life.
In 2002, Gonzalo Giribet and Ward Wheeler suggested that the orders Myoida and Veneroida were not monophyletic. They have since been widely reorganised.
Orders and families Order: Venerida Superfamily: †Anthracosioidea Family: †Anthracosiidae Family: †Ferganoconchida Family: †Shaanxiconchidae Superfamily: Arcticoidea Family: Arcticidae Family: †Pollicidae Family: Trapezidae Family: †Veniellidae Superfamily: Chamoidea Family: Chamidae Superfamily: Cyrenoidea Family: Cyrenidae Family: Cyrenoididae Family: Glauconomidae Superfamily: Glossoidea Family: Glossidae Family: Kelliellidae Family: †Lutetiidae Family: Vesicomyidae Superfamily: Hemidonacoidea Family: Hemidonacidae Superfamily: Mactroidea Family: Anatinellidae Family: Cardiliidae Family: Mactridae Family: Mesodesmatidae Superfamily: Galeommatoidea Family: Galeommatidae Family: Kellidae Family: Lasaeidae Family: Leptonidae Family: Montacutidae Superfamily: †Palaeanodontoidea Family: †Palaeanodontidae Superfamily: †Prilukielloidea Family: †Prilukiellidae Family: †Senderzoniellidae Superfamily: Ungulinoidea Family: Ungulinidae Superfamily: Veneroidea Family: †Isocyprinidae Family: Neoleptonidae Family: Veneridae
References
External links
Veneroida Taxonomy at the National Center for Biotechnology Information (NCBI)