The sea urchins and sand dollars: echinoderms with a rigid, globular or flattened shell (test) covered in movable spines used for defense and locomotion. Echinoidea graze algae from rock surfaces using a complex five-part jaw structure known as Aristotle's lantern.
Facts
Disputed
Member Species/Taxa CountApproximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized. Taxonomic Rank Scientific Name Classification
Living or Extinct Echinoidea
Filter Results2 entries
Connections
Child Taxon Of
Parent Taxon Of
Source Wikidata: Purple Sea Urchin
Source Wikidata: Sand Dollar
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ83483, descriptionView the Source 2. Catalogue of Life
Wikidata: Echinoidea
Wikidata: Purple Sea Urchin
Parent Taxon Of: Purple Sea Urchin, Wikidata parent-taxon (P171) chainView the Source Wikidata: Sand Dollar
Parent Taxon Of: Sand Dollar, Wikidata parent-taxon (P171) chainView the Source Sea urchin (Wikipedia)
In Group: Echinoderm Classes, LeadQuote, In Group: Echinoderm Classes, Lead
Sea urchins or urchins () are the class Echinoidea within the echinoderms.
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