Galeommatoidea

Galeommatoidea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Superorder: Imparidentia
Order: Galeommatida
Lemer et al., 2019
Superfamily: Galeommatoidea
Gray, 1840
Families

Galeommatoidea a superfamily of bivalves classified in the monotypic order Galeommatida.

Galeommatoids exhibit symbiotic relationships with many different groups of benthic and burrowing invertebrates.[1] An ectocommensal species, "Parabonia" squillina, has been found to be nearly mutually exclusive with burrow-wall commensal species of Lysiosquilla.[2]They are capable of active locomotion, crawling on their foot like a snail.[3]

Galeommatoidea is a member of the heterodont bivalve clade Imparidentia, but its precise placement within that clade is poorly resolved.[4][5] As it falls outside of previously recognized imparidentian orders, it is classified in an order of its own, Galeommatida.[5] The monophyly of Galeommatoidea is strongly supported by molecular phylogenetic analyses.[1][4] However, the internal classification 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,[4] but as of 2024, only three families, Basterotiidae, Galeommatidae, and Lasaeidae, are accepted by MolluscaBase.[6]

Galeommatoidea is a species-rich group.[4] As of 2010, it was estimated that Galeommatoidea contained approximately 500 species in 100 genera.[7]

  1. ^ a b c Cite error: The named reference goto2012 was invoked but never defined (see the help page).
  2. ^ Harrison, Teal A.; Goto, Ryutaro; Li, Jingchun; Foighil, Diarmaid Ó (2024-08-05). "Within-host adaptive speciation of commensal yoyo clams leads to ecological exclusion, not co-existence". PeerJ. 12: e17753. doi:10.7717/peerj.17753. ISSN 2167-8359. PMC 11308998.
  3. ^ Cite error: The named reference mikkelsen1989 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference bieler2014 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference lemer2019 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference molluscabase was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference huber2010 was invoked but never defined (see the help page).