Cidaridae
Cidaridae Temporal range:
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Cidaris cidaris | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Echinoidea |
Order: | Cidaroida |
Superfamily: | Cidaroidea |
Family: | Cidaridae Gray, 1825 |
Genera | |
Cidaridae is a family of sea urchins in the order Cidaroida.
Description and characteristics[]
Cidarid sea urchins are characterized by their stout skeleton : the test is thick and hard, with massive perforated tubercles (never crenulated) surrounded by a crown of secondary tubercles, but no primary tubercles in the interambulacra regions. These tubercles hold massive spines, thick, strong and often very long, and showing sometimes odd shapes (thorny spines, fans, clubs, Christmas trees[1]...)[2] · .[3]
The order Cidaroida is the basalmost of current sea urchins, and most of the species included in this family are abyssal, even if a handful of species remain quite common in tropical shallow waters, like Eucidaris or Phyllacanthus.
Genera[]
According to the World Register of Marine Species (WoRMS), the following genera are included in this family [4]
- Subfamily (Mortensen, 1928a)
- Genus Calocidaris (H.L. Clark, 1907)
- Genus Centrocidaris (A. Agassiz, 1904)
- Genus Chondrocidaris (A. Agassiz, 1863)
- Genus (Ikeda, 1941)
- Genus Cidaris (Leske, 1778)
- Genus (Ikeda, 1939)
- Genus Eucidaris (Pomel, 1883)
- Genus (Mortensen, 1928b)
- Genus (Mortensen, 1932)
- Genus (Mortensen, 1939)
- Genus (Mortensen, 1903b)
- Subfamily (Mortensen, 1928a)
- Genus Austrocidaris (H.L. Clark, 1907)
- Genus Goniocidaris (Desor, in Agassiz & Desor, 1846)
- Genus (Mortensen, 1921)
- Genus (Mortensen, 1927)
- Genus (Mortensen, 1927)
- Genus (Mortensen, 1903b)
- Genus (Cotton & Godfrey, 1942) (nomen dubium)
- Tribe (Smith & Wright, 1989)
- Genus Phyllacanthus (Brandt, 1835)
- Sub-family (Lambert, 1900)
- Genus (Lambert, 1902)
- Genus Stereocidaris (Pomel, 1883)
- Subfamily (Mortensen, 1903)
- Genus Acanthocidaris (Mortensen, 1903b)
- Genus Plococidaris (Mortensen, 1909)
- Genus Prionocidaris (A. Agassiz, 1863)
- Genus Stylocidaris (Mortensen, 1909)
A now abandoned genus, Cidarites was used in the late 18th and early 19th century to describe a number of species of both cidarid and echid sea urchins.[5]
Plococidaris verticillata
, from Philippines
Chondrocidaris gigantea, from Hawaii
Stylocidaris affinis
References[]
- ^ Mah, Christopher L. (December 7, 2009). "The Echinoderm Christmas Tree?? Antarctic Cidaroid Sea Urchins!". Echinoblog.
- ^ Mah, Christopher L. (August 20, 2013). "Strange Urchin Spines! Past and Present!". Echinoblog.
- ^ Mah, Christopher L. (May 20, 2015). "What is Going on with cidaroid sea urchins and their WEIRD spines??". Echinoblog.
- ^ WoRMS : Cidaridae
- ^ "Cidarites auct". WoRMS. Retrieved 9 April 2013.
- The Echinoid Directory : Taxonomy; Natural History Museum, London
- Description of the Cidaridae; Natural History Museum, London
- Hansson, H.G. (2001). Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 336–351
- Cidaridae
- Cisuralian first appearances
- Extant Permian first appearances
- Echinoderm families