#crinoid  primitive echinoderms having five or more feathery arms radiating from a central disk
  supertype:  echinoderm  marine invertebrates with tube feet and calcite-covered five-part radially symmetrical bodies
  member of:  class_Crinoidea
  subtype:  sea_lily__sealily  crinoid with delicate radiating arms and a stalked body attached to a hard surface
  subtype:  feather_star__featherstar__comatulid  free-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms

No statement uses or specializes crinoid; click here to add one.