Crinoidea
Crinoidea (kri*noid"e*ȧ) , noun, plural
[New Latin, from Greek kri`non lily + -oid: compare French crinoide.]
(Zoology) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula.