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Ophiuroidea    
蛇尾纲; 蛇尾亚纲

蛇尾纲; 蛇尾亚纲

Ophiuroidea
n 1: brittle stars and basket stars [synonym: {Ophiuroidea}, {class
Ophiuroidea}]


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  • Brittle star - Wikipedia
    Brittle stars, serpent stars, or ophiuroids (from Latin ophiurus 'brittle star'; from Ancient Greek ὄφις (óphis) 'serpent' and οὐρά (ourá) 'tail'; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish
  • Ophiuroidea | INFORMATION | Animal Diversity Web
    Two thousand species have been species identified in Subclass Ophiuroidea All are marine, as are all echinoderms They are found in all seas, at all latitudes, and from the intertidal to the abyssal zone (to a depth of 6,000 meters) Ophiuroids exhibit the three distinctive characteristics of the phylum Echinodermata: a body plan with five part symmetry (pentaradial), an internal calcium
  • Ophiuroidea - an overview | ScienceDirect Topics
    Ophiuroidea refers to a class of echinoderms commonly known as brittle stars, characterized by their sac-like invaginations called bursae, which serve as a brooding pouch for developing juveniles in certain species They exhibit diverse reproductive modes, including brooding, where gametes and juveniles develop within the bursae AI generated definition based on: Journal of Experimental Marine
  • Deep-Sea, Segmented Arms, Radial Symmetry - Britannica
    Brittle star, any of the 2,100 living species of marine invertebrates constituting the subclass Ophiuroidea (phylum Echinodermata) Their long, thin arms—usually five and often forked and spiny—are distinctly set off from the small disk-shaped body The arms readily break off but soon regrow—i e ,
  • Ophiuroidea - Digital Atlas of Ancient Life
    Ophiuroidea are the most speciose living echinoderm class, inhabiting all regions of the world’s oceans, and are often found in dense aggregations at great depths (>5,000m) Sometimes there are so many that they look like a carpet or meadow covering the entire ocean bottom Unusual for an echinoderm, ophiuroids can also tolerate brackish water environments, a mix of freshwater and marine
  • WoRMS - World Register of Marine Species
    The World Ophiuroidea Database (part of WoRMS - the World Register of Marine Species) The Ophiuroidea (brittle stars and basket stars) are the largest class among extant Echinodermata They are characterized by the disk being clearly offset from the arms Like all echinoderms they are usually pentamerous, although species with six and more arms exist In basket stars the arms may branch
  • Ophiuroidea - Assembling the Echinoderm Tree of Life
    OPHIUROIDEA - Brittle stars, basket stars and snake stars Rebecca L Hunter Introduction Ophiuroids are the most speciose group of echinoderms with over 2000 described species (Hendler et al 1995; Stöhr et al 2012) They occur in virtually every marine environment from the poles to the equa
  • Ophiuroidea - GBIF
    Ophiuroidea in Rodrigues C F, Paterson G L J, Cabrinovic A, Cunha M R, plazi (2011) Deep-sea ophiuroids (Echinodermata: Ophiuroidea: Ophiurida) from the Gulf of Cadiz (NE Atlantic)
  • Introduction to the Ophiuroidea
    Introduction to the Ophiuroidea Ophiuroids are a large group (over 1600 species) of echinoderms that includes the brittle stars (Ophiurida) and basket stars (Euryalida) The more familiar Ophiurida, or brittle stars, usually have five arms and superficially resemble true starfish (Asteroidea) However, brittle stars have long, flexible arms (hence the other common name for ophiuroids, "snake
  • Molecular phylogeny and fossil records reveal the origin and . . .
    During this interval, Ophiuroidea fossils became widely distributed across the western Tethyan realm and adjacent continental margins By the Jurassic, and particularly during the Cretaceous, fossil occurrences reach their maximum spatial extent, spanning extensive areas of Laurasian and Gondwanan-derived landmasses





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