Taxa

Echinodermata

Phylum

Citation Formats

General Reference

Nature Atlas. "Echinodermata." Accessed September 8, 2026. https://nature.interactiveatlas.org/taxa/phylum-echinodermata.

APA Style

Nature Atlas. (n.d.). Echinodermata. Retrieved September 8, 2026, from https://nature.interactiveatlas.org/taxa/phylum-echinodermata

BibTeX

@misc{natureatlas-echinodermata,
  author = {Nature Atlas},
  title = {Echinodermata},
  year = {2026},
  url = {https://nature.interactiveatlas.org/taxa/phylum-echinodermata},
  note = {Accessed September 8, 2026}
}

Exclusively marine invertebrates with a distinctive five-part radial body symmetry as adults, a calcium-carbonate endoskeleton just beneath the skin, and a unique water-vascular system of fluid-filled canals used for movement and feeding. Echinodermata includes sea stars, sea urchins, brittle stars, sea cucumbers and feather stars.

Facts

Disputed

Member Species/Taxa Count

7000 1

Approximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized.

Taxonomic Rank

Phylum / Division 1

Scientific Name

Echinodermata 1

Cross-Tradition Connections