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Trigonioidea

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Trigonioidea
Temporal range: Devonian–Recent
Yaadia valentina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Trigoniida
Superfamily: Trigonioidea
Lamarck, 1819
Families

See text

Trigonioidea is superfamily of medium-sized saltwater clams, marine bivalve molluscs. Within the fossil record the occurrence of this superfamily is widespread, ranging from the Devonian Period to Recent.

The diagnostic feature for the superfamily is the unique and complex dentition of the shell, (i.e. the interior hinge teeth that articulate the two valves). The dentition is particularly elaborate within the family Trigoniidae.

Bieler, Carter, & Coan (2010) included the following families in Trigonioidea.[1] Taxa marked with a are extinct.

Trigonioidea

References

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  1. ^ Bouchet, Philippe; Rocroi, Jean-Pierre; Bieler, Rüdiger; Carter, Joseph G.; Coan, Eugene V. (2010). "Nomenclator of Bivalve Families with a Classification of Bivalve Families". Malacologia. 52 (2): 1–184. doi:10.4002/040.052.0201.