Anomalodesmata

Anomalodesmata is an order of saltwater clams, marine bivalve molluscs.[2] 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.[3]

Anomalodesmata
Temporal range: Tremadocian–0[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Anomalodesmata
Dall, 1889
Families

See text.

Synonyms

Anomalodesmacea
Pholadomyida
Pholadomyoida

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.[4]

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.[5] The following tree is their info which has been updated with the latest information from the World Register of Marine Species:

Order: Anomalodesmata

gollark: an bad prof
gollark: I can't hear you, I'm busy working on my business pitch to investors about real-time butterfly tracking.
gollark: I was talking about your rain prediction thing being maybe theoretically possible.
gollark: For instance, you would need position and accelerometer data on the wings of *every butterfly*!
gollark: Not *theoretically possible* as in "it will actually likely be possible to do it within a few centuries".

References
  1. Sánchez, T. M.; Vaccari, N. E. (2003). "Ucumariidae new family (Bivalvia, Anomalodesmata) and other bivalves from the Early Ordovician (Tremadocian) of northwestern Argentina". Ameghiniana. 40 (3): 415–424. doi:10.5710/amgh.v40i3.969.
  2. Anomalodesmata Stoliczka, Dall, 1889. Retrieved through: World Register of Marine Species on 9 July 2010.
  3. "WoRMS - World Register of Marine Species - Anomalodesmata". www.marinespecies.org. Retrieved 2019-04-03.
  4. Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 431. ISBN 0-03-056747-5.
  5. 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


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