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Trichaster
''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer'' von Martens, 1866 *† ''Trichaster ornatus'' (Rasmussen, 1950) * ''Trichaster palmiferus ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer'' von Martens, 1866 *† ''Trichaster ornatus ''Trichaster'' is a genus of echin ...'' (Lamarck, 1816) References Phrynophiurida Ophiuroidea genera {{ophiuroidea-stub ...
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Trichaster Acanthifer
''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae Euryalidae is a family of echinoderms belonging to the order Euryalida. Genera Genera: * '' Asteromorpha'' Lütken, 1869 * '' Asteroschema'' Örsted & Lütken, 1856 * '' Asterostegus'' Mortensen, 1933 * '' Astrobrachion'' Doederlein, 1927 * '' .... Species: * '' Trichaster acanthifer'' Döderlein, 1927 * '' Trichaster flagellifer'' von Martens, 1866 *† '' Trichaster ornatus'' (Rasmussen, 1950) * '' Trichaster palmiferus'' (Lamarck, 1816) References Phrynophiurida Ophiuroidea genera {{ophiuroidea-stub ...
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Trichaster Flagellifer
''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae Euryalidae is a family of echinoderms belonging to the order Euryalida. Genera Genera: * '' Asteromorpha'' Lütken, 1869 * '' Asteroschema'' Örsted & Lütken, 185 ...'' Döderlein, 1927 * '' Trichaster flagellifer'' von Martens, 1866 *† '' Trichaster ornatus'' (Rasmussen, 1950) * '' Trichaster palmiferus'' (Lamarck, 1816) References Phrynophiurida Ophiuroidea genera {{ophiuroidea-stub ...
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Trichaster Ornatus
''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae Euryalidae is a family of echinoderms belonging t ...'' von Martens, 1866 *† '' Trichaster ornatus'' (Rasmussen, 1950) * '' Trichaster palmiferus'' (Lamarck, 1816) References Phrynophiurida Ophiuroidea genera {{ophiuroidea-stub ...
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Trichaster Palmiferus
''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer'' von Martens, 1866 *† ''Trichaster ornatus ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Spe ...'' (Rasmussen, 1950) * '' Trichaster palmiferus'' (Lamarck, 1816) References Phrynophiurida Ophiuroidea genera {{ophiuroidea-stub ...
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Euryalidae
Euryalidae is a family of echinoderms belonging to the order Euryalida. Genera Genera: * '' Asteromorpha'' Lütken, 1869 * '' Asteroschema'' Örsted & Lütken, 1856 * '' Asterostegus'' Mortensen, 1933 * '' Astrobrachion'' Doederlein, 1927 * '' Astroceras'' Lyman, 1879 * '' Astrocharis'' Koehler, 1904 * '' Euryale'' Lamarck, 1816 * '' Ophiocreas'' Lyman, 1879 * '' Squamophis'' Okanishi, O'Hara & Fujita, 2011 * '' Sthenocephalus'' Koehler, 1898 * ''Trichaster ''Trichaster'' is a genus of echinoderms belonging to the family Euryalidae. Species: * ''Trichaster acanthifer'' Döderlein, 1927 * ''Trichaster flagellifer'' von Martens, 1866 *† ''Trichaster ornatus'' (Rasmussen, 1950) * ''Trichaster ...'' L. Agassiz, 1836 References Echinoderm families Phrynophiurida {{Ophiuroidea-stub ...
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Echinoderm
An echinoderm () is any member of the phylum Echinodermata (). 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. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. ...
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Phrynophiurida
The Phrynophiurida (formerly called Euryalae) are an order of brittle stars containing the basket stars. Characteristics Phrynophiurida have bursae for gas exchange and excretion. Their ventral arm shields are rudimentary, and dorsal shields usually absent. Arms sometimes are branched, and can coil vertically. The vertebrae are joined by hourglass-shaped surfaces. The madreporite is on the oral surface. Digestive glands are confined to central disc. The integument is leathery, bearing calcareous granules or platelets. They generally live in deep-sea waters, coiling their arms on branched black coral. Systematics The Asteronychidae have a large disk and slender arms, and the Asteroschematidae have a small disk and stout arms. One remaining family, the Ophiomyxidae, differs in having a soft, unprotected integument, like that of Ophiocanops, but lacks the peculiar features of the gut and gonads in oegophiurids. Phrynophiurida are divided into the following suborders and fami ...
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