User:Shellnut/Bronze sandbox

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Bronze sandbox

Bivalvia - taxonomy overhaul

Intro notes to section (PLEASE NOTE THIS HAS GONE LIVE ON Bivalvia ALREADY)

Many systems have been developed for the classification of bivalves, but for the past two centuries no professional consensus has existed on bivalve phylogeny. In the earlier taxonomic systems experts used only one characteristic feature for their taxonomic system, either shell morphology, hinge type, or the type of gills. Many conflicts existed due to taxonomies based on single organ systems and conflicting naming schemes proliferated. One of the most widely accepted systems was that of Newell in the Treatise on Invertebrate Paleontology Moore [ed.] (1969), which employed a classification system based on general shell shape, microstructures and hinge configuration.[1] Since features such as hinge morphology, dentition, mineralogy, and shell morphology and composition change slowly these characteristics can be used for defining major taxonomic groups. Due to the numerous fossil lineages, DNA sequence data is of limited use in classifying extinct species.

In the last decade, taxonomic studies using

Heterodonta. Molecular phylogeny work continues, further refining the taxonomy of the Bivalvia.[8][9]

2010 proposed taxonomy of the Bivalvia

In May 2010 a new taxonomy of the Bivalvia was published in the journal Malacologia. In this classification 324 families were recognized as valid, 214 of which are known exclusively as fossils and 110 families occur in the Recent with or without a fossil record.[10] This publication consisted of two parts :

  • Nomenclator of Bivalve Names of the Family-Group and above
  • Classification of Bivalve Families (under the redaction of Rüdiger Bieler, Joseph G. Carter and Eugene V. Coan)

The 2010 proposed taxonomy of the Class Bivalvia is as follows:

Class: Bivalvia

Subclass:
Heterodonta

Infraclass:
Archiheterodonta

Order:
Carditoida

Infraclass: Euheterodonta

Unassigned Euheterodonta

Order: Anomalodesmata

Order:
Myoida

Order:
Lucinoida

Order:
Veneroida

Subclass: Palaeoheterodonta

Order:
Trigonioida

Order:
Unionoida

Subclass: Protobranchia

Order: Nuclanoida

Order: Nuculida

Order:
Solemyoida

Subclass: Pteriomorphia

Order:
Arcoida

Infraclass: Eupteriomorphia

Order:
Ostreoida

Suborder:
Pectinoida
Suborder:
Limoida
  • Superfamily:
    Limoidea
Suborder:
Mytiloida
Suborder:
Pterioida


References

  1. ^ Norman D. Newell (1969): [Bivalvia systematics]. In: Moore, R.C.: Treatise on Invertebrate Paleontology Part N.
  2. ^ G. Giribet and W. Wheeler (2002) On bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data. Invertebrate Biology 121(4):271-324.
  3. ^ Bieler, R. & Mikkelsen, P.M. (2006) Bivalvia - a Look at the Branches, Zoological Journal of the Linnean Society, 148: 223-235.
  4. ^ Mikkelsen, P. M., R. Bieler, I. Kappner & T. A. Rawlings (2006) Phylogeny of Veneroidea (Mollusca: Bivalvia) based on morphology and molecules. Zoological Journal of the Linnean Society, 148(3): 439-521.
  5. ^ Taylor, J.D., S.T. Williams, E.A. Glover & P. Dyal (2007) A molecular phylogeny of heterodont bivalves (Mollusca: Bivalvia: Heterodonta): new analyses of 18S and 28S rRNA genes, Zoologica Scripta 36: 587-606.
  6. ^ Taylor, J. D., E. A. Glover, and S. T. Williams (2009) Phylogenetic position of the bivalve family Cyrenoididae – removal from (and further dismantling of) the superfamily Lucinoidea. Nautilus 123(1): 9-13.
  7. ^ Bieler, R., Carter, J.G. & Coan, E.V. (2010) Classification of Bivalve families. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), Nomenclator of Bivalve Families. Malacologia 52(2): 1-184
  8. ^ Tëmkin, I. (2010) Molecular phylogeny of pearl oysters and their relatives (Mollusca, Bivalvia, Pterioidea). BMC Evolutionary Biology 10: 342., available online at http://www.biomedcentral.com/content/pdf/1471-2148-10-342.pdf
  9. ^ Taylor, J. D., Glover, E. A., Dyal, P. and S. T. Williams (2011) Molecular phylogeny and classification of the chemosymbiotic bivalve family Lucinidae (Mollusca: Bivalvia) Zoological Journal of the Linnean Society 163:15-49.
  10. .


Further reading


External Links