What animals are in the phylum echinodermata?

Echinodermata

Subphylum: Eleutherozoa

Superclassis: Asterozoa

Classes: Asteroidea - †Somasteroidea Subphylum: Eleutherozoa

Superclassis: Cryptosyringida

Classes: Echinoidea - Holothuroidea - Ophiuroidea Subphylum: †Homalozoa

Classis: Stylophora Subphylum: Pelmatozoa

Classes: †Blastoidea - Crinoidea