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Parechinidae

From Wikipedia, the free encyclopedia

Parechinidae
Paracentrotus lividus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Camarodonta
Infraorder: Echinidea
Family: Parechinidae
Mortensen, 1903b [1]
Genera

See text

The Parechinidae are a family of sea urchins in the class Echinoidea.

Characteristics

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All camarodonts have imperforate tubercles and compound ambulacral plates. In addition, the characteristics of the parechinids include the interambulacral plates being densely covered with tubercles with many subequal tubercles, and the buccal notches being insignificant in size. The globiferous pedicellariae between the spines have widely open blades each with many lateral teeth.[2]

Genera

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Image Genus Species
Loxechinus Desor, 1856
Paracentrotus Mortensen, 1903b
Parechinus Mortensen, 1903b
Psammechinus L. Agassiz & Desor, 1846 [1]


Fossils

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References

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  1. ^ a b Parechinidae World Register of Marine Species. Retrieved 2011-08-25.
  2. ^ The Echinoid Directory The Natural History Museum. Retrieved 2011-08-25.