Nota de aplicación
Members of a class containing around 950 living species of marine invertebrates having a globular or discoid form, and a rigid shell composed of many calcareous plates, in some species covered with projecting spines.
Ubicación jerarquía
- faceta agentes
- .. organismo vivo (nombre jerárquico)
- .... organismo vivo (entidad)
- ...... Eucariota (dominio)
- ........ animal (reino)
- .......... Echinodermata (phylum)
- ............ Asteroidea (class)
- ............ Crinoidea (clase) [+]
- ............ Echinoidea (class)
- ................ Clypeastroida (order)
- ............ Ophiuroidea (class)