[Kingdom] Animalia Linnaeus, 1758 - animals
   Grade Enterozoa
     Grade Cœlomata
       Phylum Echinoderma
         Branch Tentaculata Eschscholtz, 1825
           Class Crinoidea Miller, 1821 - sea lilies and feather stars
             1 Order Tessellata (Jousseaume, 1884)
             2 Order Articulata Miller, 1821