Echinodermata


            https://term.museum-digital.de/md-de/tag/5214

JSON SKOS Navigator Tree

Note: "Homalozoa † Gill & Caster, 1960

Homostelea †Homoiostelea †Stylophora †Ctenocystoidea † Robison & Sprinkle, 1969Crinozoa

CrinoideaEdrioasteroidea †?Arkarua †Cystoidea †Rhombifera †Asterozoa

OphiuroideaAsteroideaEchinozoa

EchinoideaHolothuroideaOphiocistioidea †Helicoplacoidea †Blastozoa †

Blastoidea †Cystoidea † von Buch, 1846Eocrinoidea †Jaekel, 1899Paracrinoidea † Regnéll, 1945† = Extinct

Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ἐχῖνος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals. The adults are recognizable by their (usually five-point) radial symmetry, and include starfish, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone.The phylum contains about 7000 living species, making it the second-largest grouping of deuterostomes (a superphylum), after the chordates (which include the vertebrates, such as birds, fishes, mammals, and reptiles). Echinoderms are also the largest phylum that has no freshwater or terrestrial (land-based) representatives." - (en.wikipedia.org 08.03.2020)