Echinodermata
Query URLs
https://term.museum-digital.de/md-de/tag/5215
- Note
- Homalozoa † Gill & Caster, 1960
Cincta †Soluta †Stylophora †Ctenocystoidea † Robison & Sprinkle, 1969Crinozoa
CrinoideaEdrioasteroidea †Cystoidea †Rhombifera †Asterozoa
OphiuroideaAsteroideaEchinozoa
EchinoideaHolothuroideaOphiocistioidea †Helicoplacoidea †Blastozoa †
Blastoidea †Cystoidea † von Buch, 1846Eocrinoidea †Jaekel, 1899Paracrinoidea † Regnéll, 1945†=Extinct
An echinoderm (/ɪˈkaɪnəˌdɜːrm, ˈɛkə-/) is any member of the phylum Echinodermata (/ɪˌkaɪnoʊˈdɜːrmətə/). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian.
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Schlangenstern - Loriolaster mirabilis
Perfekt erhaltenes Exemplar...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA -
Seelilien - Hapalocrinus frechi
Strauchartige Seeliliengruppe...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA -
Füllhorn des Hunsrückschiefers
Ein sogenanntes "Füllhorn aus...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA -
Schlangenstern - Ophiurina lymani
Kleinwüchsiger Schlangenstern...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA -
Schlangenstern - Furcaster palaeozoicus
Drei Schlangensterne...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA
References
Synonyms
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