Camarodonta

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Camarodonta
Paracentrotus lividus profil.JPG
Paracentrotus lividus
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Superorder: Echinacea
Order: Camarodonta
Jackson, 1912 [1]
Families
See text

The Camarodonta are an order of globular sea urchins in the class Echinoidea. The fossil record shows that camarodonts have been in existence since the Lower Cretaceous.[2]

Characteristics[edit]

All camarodonts have imperforate tubercles and compound ambulacral plates with the lowest elements enlarged. The pores are at regular intervals along the ambulacral plates from the apex to the mouth opening or peristome. The Aristotle's lantern, or jaw system, has keeled teeth with the supports meeting above the "foramen magnum".[2]

Families[edit]

According to World Register of Marine Species:[1]

References[edit]

  1. ^ a b Camarodonta World Register of Marine Species. Retrieved 2011-08-27.
  2. ^ a b The Echinoid Directory The Natural History Museum. Retrieved 2011-08-27.