Clypeastroida (order)
Esquema
Jerarquía
Eukaryota (domain) > Animalia (kingdom) > Echinodermata (phylum) > Echinoidea (class)
Descripción
Members of an order of marine invertebrates having a flat, disk-shaped body, lacking the spherical symmetry of other echinoderms, but having five- or six-rayed markings on their surface; living on the sandy sea bottom of coastal North America south of the Arctic.
URI original del concepto
Otros términos
- sand dollars [en]
- sand dollar [en]
- dollars, sand [en]
- sand-dollars [en]
- Clypeasteroida [en]
- Clypeasteroida [la]