| image = Featherx.JPG | regnum = Animalia | phylum = Echinodermata | subphylum = Crinozoa | classis = Crinoidea | classis_authority = Miller, 1821 | subdivision_ranks = Subclasses | subdivision = Articulata (540 species) Cladida (extinct) Flexibilia (extinct) Camerata (extinct) Disparida (extinct) }} Crinoids, also known as sea lilies or feather-stars, are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata). Crinoidea comes from the Greek word krinon, "a l… (More on Crinoidea)