Echinodermata echino มาจากคำว่า ekhinos

An echinoderm is any deuterostomal animal of the phylum Echinodermata which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers,

Echinodermata ) from the Champlainian Guttenberg Forma- tion of the Upper Mississippi Valley Region J Paleontol 5 : 631-653

echinodermata Echinodermata , class: Ophiuroidea Like the asteroids, ophiuroids have five long arms, and they can grow up to 60cm

echinodermata Echinodermata is a phylum of about 7000 living species distributed among five classes: Echinoidea , Holothuroidea ,