(n.pl.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). crinoidea. Retrieved September 26, 2026, from http://smartdefine.org/crinoidea/definitions/1993035 |
| Chicago | Webster's. 2011. "crinoidea" http://smartdefine.org/crinoidea/definitions/1993035 (accessed September 26, 2026). |
| Harvard | Webster's 2011, crinoidea, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/crinoidea/definitions/1993035>. |
| MLA | Webster's. "crinoidea" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/crinoidea/definitions/1993035> |