Difference between revisions of "Echinoid"
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Revision as of 13:56, 2 October 2007
Definition of Eninoidea:
class of echinoderms, commonly called sea urchins, having a typically globular body with skeletal plates fitting together to form a rigid test.[1].
This is the common definition for Eninoidea, other definitions can be discussed in the article
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References
- ↑ Lawrence, E. (2005). Henderson’s dictionary of biology. Pearson Education Limited, 13th ed., Harlow. 748 p.
