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.
| Venerida | |
|---|---|
| |
| The hard clam, Mercenaria mercenaria | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Infraclass: | Heteroconchia |
| Subterclass: | Euheterodonta |
| Superorder: | Imparidentia |
| Order: | Venerida Gray, 1854 |
| Families | |
|
See text | |
| Synonyms | |
|
Veneroida | |
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).[1][2]
Description
editVenerids 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.[citation needed]
In 2002, Gonzalo Giribet and Ward Wheeler suggested that the orders Myoida and Veneroida were not monophyletic.[3] They have since been widely reorganised.[citation needed]
Orders and families
editOrder: 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
- Species: Hemidonax pictus and others
- 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
edit- ^ "Cardiida". MolluscaBase. World Register of Marine Species. 2018. Retrieved 2018-07-16.
- ^ "Venerida". WoRMS. World Register of Marine Species. 2018. Retrieved 2018-07-16.
- ^ Gonzalo Giribet and Ward Wheeler (November 2002). "On bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data". Invertebrate Biology. 121 (4): 271–324. doi:10.1111/j.1744-7410.2002.tb00132.x.
External links
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