Forcipulatida
From Wikipedia, the free encyclopedia
| Forcipulatida | |
|---|---|
 | |
| Asterias rubens | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Subphylum: | Eleutherozoa |
| Superclass: | Asterozoa |
| Class: | Asteroidea |
| Order: | Forcipulatida |
| Families | |
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See Text | |
The Forcipulatida are an order of sea stars, containing 3 families and 49 genera.
Description
Forcipulatids share with the brisingid sea stars distinctive pedicellariae, consisting of a short stalk with three skeletal ossicles. Unlike that group, however, the forcipulatids tend to have more robust bodies.[1] The order includes some well-known species, such as the common starfish, Asterias rubens.
Phylogeny
The order is divided into three families:[2]
- Family Asteriidae — 39 genera
- Family Heliasteridae — 2 genera
- Family Zoroasteridae — 8 genera
But World Register of Marine Species gives another taxonomy :
- Family Asteriidae Gray, 1840
- Family Heliasteridae Viguier, 1878
- Family Pedicellasteridae Perrier, 1884
- Family Pycnopodiidae Fisher, 1928
- Family Stichasteridae
- Family Zoroasteridae Sladen, 1889
References
- ↑ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 948. ISBN 0-03-056747-5.
- ↑ McKnight, D.G. (2006). Marine Fauna of New Zealand: Echinodermata: Asteroidea (sea-stars). 3. Orders Velatida, Spinulosida, Forcipulatida, Brisingida with addenda to Paxillosida, Valvatida. NIWA Biodiversity Memoir 120: 1-187.
Further reading
- Mah, C. & D. Foltz. (2011). Molecular Phylogeny of the Forcipulatacea (Asteroidea: Echinodermata): systematics and biogeography. Zoological Journal of the Linnean Society 162(3): 646-660
- Sladen, W.P. (1889). Report on the Asteroidea. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876, Zoology 30(51): xlii + 893 pages 118 plates.
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