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Echinodermata Overview, Characteristics & Respiration echinodermata The phylum Echinodermata includes animals that have an internal skeleton and a water-based pressure system for locomotion Members of this phylum include echinodermata Note: Echinodermata was a pre-Linnaean taxon that comprised animals of the present-day class Echinoidea The name Echinodermata, those having hedgehog-like

echinodermata Phylum Echinodermata Class Asteroidea starfish Click link to view examples Class Ophiuroidea brittle stars Click link to view examples Class Echinoidea