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Camarodonta

provided by wikipedia EN

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

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

According to World Register of Marine Species:[1]

References

  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.
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Camarodonta: Brief Summary

provided by wikipedia EN

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.

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cc-by-sa-3.0
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Wikipedia authors and editors
original
visit source
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wikipedia EN