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Unresolved name

Maxillopoda

Maxillopoda

provided by wikipedia EN

Maxillopoda is a diverse class of crustaceans including barnacles, copepods and a number of related animals. It does not appear to be a monophyletic group, and no single character unites all the members.[2]

Description

With the exception of some barnacles, maxillopodans are mostly small,[3] including the smallest known arthropod, Stygotantulus stocki.[2] They often have short bodies, with the abdomen reduced in size, and generally lacking any appendages.[3] This may have arisen through paedomorphosis.[3]

Apart from barnacles, which use their legs for filter feeding, most maxillopodans feed with their maxillae. They have a bauplan comprising 5 cephalic segments, 6 thoracic segments and 4 abdominal segments, followed by a telson.[4]

Fossil record

The fossil record of the group extends back into the Cambrian, with fossils of both barnacles[5] and tongue worms[6] known from that period.

Classification

Five subclasses are generally recognised, although many works have further included the ostracods among the Maxillopoda.[2] Of the five groups, only the Mystacocarida are entirely free-living; all the members of the Tantulocarida, Pentastomida, and Branchiura are parasitic, and many of the Copepoda are parasites.

See also

References

  1. ^ "Maxillopoda". Integrated Taxonomic Information System. Retrieved 2016-09-10.
  2. ^ a b c Joel W. Martin & George E. Davis (2001). An Updated Classification of the Recent Crustacea (PDF). Natural History Museum of Los Angeles County. p. 132.
  3. ^ a b c "Introduction to Maxillopoda". University of California, Berkeley. Retrieved 2016-09-10.
  4. ^ Phil Myers (2001). "Maxillopoda". Animal Diversity Web. Retrieved 2016-09-10.
  5. ^ B. A. Foster & J. S. Buckeridge (1987). "Barnacle palaeontology". In A. J. Southward (ed.). Crustacean Issues 5: Barnacle Biology. pp. 41–63. ISBN 978-90-6191-628-4.
  6. ^ Dieter Waloszek, John E. Repetski & Andreas Maas (June 2005). "A new Late Cambrian pentastomid and a review of the relationships of this parasitic group". Transactions of the Royal Society of Edinburgh: Earth Sciences. 96 (2): 163–176. doi:10.1017/S0263593300001280.

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Maxillopoda: Brief Summary

provided by wikipedia EN

Maxillopoda is a diverse class of crustaceans including barnacles, copepods and a number of related animals. It does not appear to be a monophyletic group, and no single character unites all the members.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN