Cylindroleberididae Explained

Cylindroleberididae is a family of ostracods that shows remarkable morphological diversity. The defining feature is the possession of gills: 7–8 leaf-like pairs at the posterior of the body. Other features common to all species in the family include a "baleen-comb" on both the maxilla and the fifth limb, a sword-shaped coxal endite on the mandible, and the triaenid bristles on the basal endites of the mandible.^[1]

Species of the Cylindroleberididae are found in marine areas, from shallow waters to depths of more than .^[2] Most species are approximately 2mm long. In 2006, there were 219 described species.^[3]

A fossil discovered in 2003 with preserved soft parts has been assigned to the Cylindroleberididae.^[4] The fossil appears to have gills and is thought to date from .^[4]

Subtaxa

Cylindroleberididae contains the following subfamilies and genera.

• Asteropteroninae Kornicker, 1981
  • Actinoseta Kornicker, 1958
  • Asteropteron Skogsberg, 1920
  • Asteropterygion Kornicker, 1981
  • Microasteropteron Poulsen, 1965
  • Omegasterope Kornicker, 1981
  • Pteromeniscus Kornicker, 1981
  • †Siveterella Kornicker & Sohn, 2000
  • †Triadocypris Weitschat, 1983
  • †Triadogigantocypris Monostori, 1991
  • Asteropella Poulsen, 1965 (nomen nudum)
• Cyclasteropinae Poulsen, 1965
  • Alphaleberis Kornicker, 1981
  • Amboleberis Kornicker, 1981
  • Cyclasterope Brady, 1897
  • Cycloleberis Skogsberg, 1920
  • †Eocypridina Kesling & Ploch, 1960
  • Leuroleberis Kornicker, 1981
  • †Mesoleberis Kornicker, van bakel, Fraaije & Jagt, 2006
  • †Radiicypridina Bless, 1973
  • Tetraleberis Kornicker, 1981
• Cylindroleberidinae Müller, 1906
  • Archasterope Poulsen, 1965
  • †Asteropina Strand, 1928
  • Bathyleberis Kornicker, 1975
  • Bruuniella Poulsen, 1965
  • Cylindroleberis Brady, 1867
  • Diasterope Kornicker, 1975
  • Dolasterope Poulsen, 1965
  • Domromeus Kornicker, 1989
  • Empoulsenia Kornicker, 1975
  • Heptonema Poulsen, 1965
  • Homasterope Kornicker, 1975
  • Monasterope Kornicker, 1991
  • Parasterope Kornicker, 1975
  • Philippiella Poulsen, 1965
  • Polyleberis Kornicker, 1974
  • Postasterope Kornicker, 1986
  • Prionotoleberis Kornicker, 1974
  • Skogsbergiella Kornicker, 1975
  • Synasterope Kornicker, 1975
  • Xandarasterope Kornicker in Kornicker & Poore, 1996
  • Xenoleberis Kornicker, 1994
• Macroasteropteroninae Karanovic & Lörz, 2012
  • Macroasteropteron Kornicker, 1994
• genera incertae sedis
  • †Colymbosathon Siveter, Sutton, Briggs & Siveter, 2003
  • †Juraleberis Vannier & Siveter, 1995
  • †Nasunaris Siveter, Briggs, Siveter & Sutton, 2010
  • †Pauline Siveter, Briggs, Siveter, Sutton & Joomun, 2012

External links

• • Interactive key to species

Notes and References

1. Erik Mellentin Poulsen . 1965 . Ostracoda-Myodocopa Part 2 Cypridiniformes-Rutidermatidae, Sarsiellidae and Asteropidae . Dana Report . 65 . XII . 1–483.
2. Louis S. Kornicker . 1981 . Revision, distribution, ecology, and ontogeny of the ostracode subfamily Cyclasteropinae (Myodocopina: Cylinderoleberididae) . . 319 . 319 . 1–548 . 10.5479/si.00810282.319.
3. Anna E. Syme . Gary C. B. Poore . 2006 . A checklist of species of Cylindroleberididae (Crustacea:Ostracoda) . Museum Victoria Science Reports . 9 . 1–20 . https://web.archive.org/web/20070906000424/http://www.museumvictoria.com.au/sciencereports/docs/report9.pdf . September 6, 2007.
4. David J. Siveter . David J. Siveter . Mark D. Sutton . Derek E. G. Briggs . Derek J. Siveter . amp . 2003 . An ostracode crustacean with soft parts from the Lower Silurian . . 14657495 . 302 . 5651 . 1749–1751 . 10.1126/science.1091376 . 2011-03-09 . https://web.archive.org/web/20110719183236/http://www.cwu.edu/~biology/courses/verhey/biol110/ostracode.pdf . 2011-07-19 . dead .