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†Cycloconchidae † Hippuritoida †Lyrodesmatidae †Redoniidae Carditoida Anomalodesmata Myoida Lucinoida Veneroida
Veneroida

HETERODONTA is a taxonomic subclass of saltwater clams, marine bivalve molluscs . This subclass includes the edible clams , the cockles and the Venus clams.

CONTENTS

* 1 Description * 2 Orders

* 3 2010 Taxonomy

* 3.1 Infraclass: Archiheterodonta * 3.2 Order: Carditoida * 3.3 Infraclass: Euheterodonta * 3.4 Unassigned Euheterodonta * 3.5 Order: Anomalodesmata * 3.6 Order: Myoida * 3.7 Order: Lucinoida * 3.8 Order: Veneroida
Veneroida

* 4 References

DESCRIPTION

These bivalves are distinguished by having the two halves of the shell equally sized (i.e, they are equivalved), and having a few cardinal teeth separated from a number of long lateral teeth . Their shells lack a nacreous layer, and the gills are lamellibranch in form. Most species have a siphon .

ORDERS

This subclass contains four extinct orders, five orders of living bivalves, and a group of as yet unassigned Euheterodonta :

* Order †Cycloconchidae * Order † Hippuritoida (rudists) * Order †Lyrodesmatidae * Order †Redoniidae

2010 TAXONOMY

In 2010, a new proposed classification system for the Bivalvia was published in by Bieler, Carter ">

* ^ Heterodonta
Heterodonta
Neumayr, 1884. Retrieved through: World Register of Marine Species on 3 February 2009. * ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 340. ISBN 0-03-056747-5 . * ^ Bieler, R., Carter, J.G. & Coan, E.V. (2010) Classification of Bivalve
Bivalve
families. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), Nomenclator of Bivalve
Bivalve
Families. Malacologia 52(2): 1-184 * ^ Archiheterodonta Giribet in Taylor, Williams, Glover & Dyal, 2007. Retrieved through: World Register of Marine Species on 3 February 2009. * ^ Giribet G. 2008. Bivalvia. Pp. 105-141, in: Ponder W.F. & Lindberg D.L. (eds), Molluscan Phylogeny. Berkeley: University of California Press, xi+469 pp. * ^ Carditoida Dall, 1889. Retrieved through: World Register of Marine Species on 3 August 2010. * ^ Euheterodonta Giribet in Taylor, Williams, Glover border-left-width:2px;border-left-style:solid;width:100%;padding:0px">

* Wd : Q131873 * EoL : 2576871 * ITIS : 80383 * NCBI : 6599 * WoRMS : 216

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