Kingdom Animalia Linnaeus, 1758 - animals Phylum Echinodermata Bruguière, 1789 - echinoderms Subphylum Crinozoa Matsumoto, 1929 see Infraphylum Crinozoa Matsumoto, 1929 Class †Paracrinoidea Regnell, 1945 Genus †Platycystites Miller, 1889