Echinolampadidae is a family of
cassiduloid echinoids
Sea urchins () are spine (zoology), spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard s ...
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Cassiduloida
Echinoderm families
{{Echinoidea-stub