Cylindroleberididae

Cylindroleberididae Temporal range: Lower Silurian–Recent PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Ostracoda
Order:	Myodocopida
Superfamily:	Cylindroleberidoidea Müller, 1906
Family:	Cylindroleberididae Müller, 1906

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 4,500 metres (14,800 ft).^[2] Most species are approximately 2 millimetres (0.08 in) long. As of 2006^[update], there are 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 425 million years ago.^[4]

References

1. ^ Erik Mellentin Poulsen (1965). "Ostracoda-Myodocopa Part 2 Cypridiniformes-Rutidermatidae, Sarsiellidae and Asteropidae". Dana Report No. 65 XII: 1–483. 
2. ^ Louis S. Kornicker (1981). "Revision, distribution, ecology, and ontogeny of the ostracode subfamily Cyclasteropinae (Myodocopina: Cylinderoleberididae)". Smithsonian Contributions to Zoology 319: 1–548. http://www.sil.si.edu/smithsoniancontributions/Zoology/sc_RecordSingle.cfm?filename=SCTZ-0319. 
3. ^ Anna E. Syme & Gary C. B. Poore (2006). "A checklist of species of Cylindroleberididae (Crustacea:Ostracoda)" (PDF). Museum Victoria Science Reports 9: 1–20. Archived from the original on September 6, 2007. http://replay.waybackmachine.org/20070906000424/http://www.museumvictoria.com.au/sciencereports/docs/report9.pdf. 
4. ^ ^{a b} David J. Siveter, Mark D. Sutton, Derek E. G. Briggs & Derek J. Siveter (2003). "An ostracode crustacean with soft parts from the Lower Silurian" (PDF). Science 302 (5651): 1749–1751. doi:10.1126/science.1091376. PMID 14657495. http://www.cwu.edu/~biology/courses/verhey/biol110/ostracode.pdf. 

External links

• Data related to Cylindroleberididae at Wikispecies
• Interactive key to species