Echinoneoida is an order of
echinoderms
An echinoderm () is any animal of the phylum Echinodermata (), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies". While bilaterally symmetrical as larv ...
belonging to the class
Echinoidea
Sea urchins or urchins () are echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spiny ...
.
Families:
*
Conulidae
*
Echinoneidae
*
Galeritidae
*
Neoglobatoridae
References
Echinoidea
{{echinoidea-stub