Class Echinoidea — synonyms, definition
1. class Echinoidea (Noun)
1 synonym
Echinoidea
1 definition
class Echinoidea (Noun) — Sea urchins and sand dollars.
1 type of
class
6 parts
Exocycloida Spatangoida order Exocycloida order Spatangoida sea urchin urchin
2 parts of
Echinodermata phylum Echinodermata