Imparidentia

Imparidentia
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Subterclass:	Euheterodonta
Superorder:	Imparidentia ; Bieler, Mikkelsen, and Giribet, 2014

Last updated December 29, 2025

Imparidentia is a major clade of bivalves named by Bieler, Mikkelsen, and Giribet in 2014; this clade, commonly recovered in phylogenetic analyses, consists of all euheterodonts other than the anomalodesmatans. The name comes from Latin impar "unequal" and dens "tooth", in reference to the unequal hinge teeth seen in members of the clade.^[1] The relationships among members of Imparidentia are uncertain.^[1]^[2]

The following orders belong within Imparidentia:^[3]

References

1 2 Bieler, Rüdiger; Mikkelsen, Paula M.; Collins, Timothy M.; Glover, Emily A.; González, Vanessa L.; Graf, Daniel L.; Harper, Elizabeth M.; Healy, John; Kawauchi, Gisele Y.; Sharma, Prashant P.; Staubach, Sid; Strong, Ellen E.; Taylor, John D.; Tëmkin, Ilya; Zardus, John D.; Clark, Stephanie; Guzmán, Alejandra; McIntyre, Erin; Sharp, Paul; Giribet, Gonzalo (2014). "Investigating the Bivalve Tree of Life – an exemplar-based approach combining molecular and novel morphological characters". Invertebrate Systematics. 28 (1): 32. doi: 10.1071/IS13010 . ISSN 1445-5226.
↑ Lemer, Sarah; Bieler, Rüdiger; Giribet, Gonzalo (2019-02-13). "Resolving the relationships of clams and cockles: dense transcriptome sampling drastically improves the bivalve tree of life". Proceedings of the Royal Society B: Biological Sciences. 286 (1896) 20182684. doi:10.1098/rspb.2018.2684. PMC 6408618 . PMID 30963927.
↑ "Imparidentia". MolluscaBase. Retrieved 2024-07-04.

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[bieler2014-1] 1 2 Bieler, Rüdiger; Mikkelsen, Paula M.; Collins, Timothy M.; Glover, Emily A.; González, Vanessa L.; Graf, Daniel L.; Harper, Elizabeth M.; Healy, John; Kawauchi, Gisele Y.; Sharma, Prashant P.; Staubach, Sid; Strong, Ellen E.; Taylor, John D.; Tëmkin, Ilya; Zardus, John D.; Clark, Stephanie; Guzmán, Alejandra; McIntyre, Erin; Sharp, Paul; Giribet, Gonzalo (2014). "Investigating the Bivalve Tree of Life – an exemplar-based approach combining molecular and novel morphological characters". Invertebrate Systematics. 28 (1): 32. doi: 10.1071/IS13010 . ISSN 1445-5226.

[lemer2019-2] Lemer, Sarah; Bieler, Rüdiger; Giribet, Gonzalo (2019-02-13). "Resolving the relationships of clams and cockles: dense transcriptome sampling drastically improves the bivalve tree of life". Proceedings of the Royal Society B: Biological Sciences. 286 (1896) 20182684. doi:10.1098/rspb.2018.2684. PMC 6408618 . PMID 30963927.

[molluscabase-3] "Imparidentia". MolluscaBase. Retrieved 2024-07-04.

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