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Sea Urchins

Echinoidea

Bernard DUPONT   cc-by-sa-2.0

Echinoidea (Sea Urchins) is a class of echinoderms. There are 4139 species of Sea Urchins, in 864 genera and 144 families. This class has been around since the middle ordovician epoch. Dead Sea Urchins form shallow marine sediments. They are omnivores. They have sexual reproduction. Reproduction is dioecious.

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  • URI: http://purl.obolibrary.org/obo/GO_0019953
  • Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.
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EOL has data for 25 attributes, including:

Bernard DUPONT   cc-by-sa-2.0

Sea Urchin Habitats

The environments in which many sea urchins species are known to live. Select an environment to see its sea urchins species checklist.

sea urchins Habitats

The environments in which many sea urchins species are known to live. Select an environment to see its sea urchins species checklist.