Echinoderm

Echinoderms (Phylum Echinodermata frae Greek, ἐχῖνος, echinos – "hedgehog" und δέρμα, derma – "skin") are a phylum o marine animals.

Echinoderms Temporal range: Cambrian–recent PreЄ Є O S D C P T J K Pg N
Various echinoderms
Scientific classification
Kinrick:	Animalia
Clade:	ParaHoxozoa
Clade:	Bilateria
Clade:	Nephrozoa
Superphylum:	Deuterostomia
Phylum:	Echinodermata Bruguière, 1791 [ex Klein, 1734]
Subphyla an clesses
Homalozoa † Gill & Caster, 1960 Homostelea † Homoiostelea † Stylophora † Ctenocystoidea † Robison & Sprinkle, 1969 Crinozoa Crinoidea Edrioasteroidea † ?Arkarua † Cystoidea † Rhombifera † Asterozoa Ophiuroidea Asteroidea Echinozoa Echinoidea Holothuroidea Ophiocistioidea † Helicoplacoidea † Blastozoa † Blastoidea † Cystoidea † von Buch, 1846 Eocrinoidea †Jaekel, 1899 Paracrinoidea † Regnéll, 1945 † = Extinct