Galeommatoidea
Order of bivalves / From Wikipedia, the free encyclopedia
Galeommatoidea a superfamily of bivalves classified in the monotypic order Galeommatida.
Galeommatoidea | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Superorder: | Imparidentia |
Order: | Galeommatida Lemer et al., 2019 |
Superfamily: | Galeommatoidea Gray, 1840 |
Families | |
Galeommatoids exhibit symbiotic relationships with many different groups of benthic and burrowing invertebrates.[1] They capable of active locomotion, crawling on their foot like a snail.[2]
Galeommatoidea is a member of the heterodont bivalve clade Imparidentia, but its precise placement within that clade is poorly resolved.[3][4] As it falls outside of previously recognized imparidentian orders, it is classified in an order of its own, Galeommatida.[4] The monophyly of Galeommatoidea is strongly supported by molecular phylogenetic analyses.[1][3] However, the internal classficiation of Galeommatoidea is controversial, and it has been divided into various poorly-defined families that may not be monophyletic.[1] Over a dozen family names have been proposed within Galeommatoidea,[3] but as of 2024, only three families, Basterotiidae, Galeommatidae, and Lasaeidae, are accepted by MolluscaBase.[5]
Galeommatoidea is a species-rich group.[3] As of 2010, it was estimated that Galeommatoidea contained approximately 500 species in 100 genera.[6]