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  Animalia
    Bilateria
     Deuterostomia
      Echinodermata
             [Eleutherozoa]
             [Pelmatoza]
             [Pelmatozoa]
        Asterozoa
               [Stelleroidea]
            Asteroidea
                  Valvatacea
                    Paxillosida
                           [Platyasterida]
                            Pseudarchasteridae
                                     Gephyreaster
                                             Gephyreaster swifti
                                     Paragonaster
                                             Paragonaster breviradiatus
                                             Paragonaster chinensis
                                             Paragonaster ctenipes
                                               Paragonaster ctenipes breviradiatus
                                               Paragonaster ctenipes ctenipes
                                               Paragonaster ctenipes hypacanthus
                                             Paragonaster grandis
                                             Paragonaster ridgwayi
                                             Paragonaster stenostichus
                                             Paragonaster subtilis
                                                   [Archaster formosus]
                                                   [Goniopecten subtilis]
                                                   [Paragonaster cylindratus]
                                                   [Paragonaster elongatus]
                                                   [Paragonaster formosus]
                                                   [Paragonaster strictus]
                                                   [Pentagonaster elongatus]
                                             Paragonaster tenuiradiis
                                     Perissogonaster
                                             Perissogonaster insignis
                                     Pseudarchaster
                                           [Aphroditaster]
                                           [Fisheraster]
                                             Pseudarchaster alascensis
                                                   [Pseudarchaster parelii alascensis]
                                             Pseudarchaster discus
                                                   [Astrogonium discus]
                                                   [Astrogonium patagonicum]
                                                   [Pseudarchaster patagonicus]
                                             Pseudarchaster dissonus
                                             Pseudarchaster diversigranulatus
                                             Pseudarchaster garricki
                                                   [Pseudarchaster abernethyi]
                                             Pseudarchaster gracilis
                                                   [Aphroditaster gracilis]
                                                   [Astrogonium aequabile]
                                                   [Astrogonium aphrodite]
                                                   [Astrogonium eminens]
                                                   [Astrogonium marginatum]
                                                   [Astrogonium necator]
                                                   [Pseudarchaster aequabile]
                                                   [Pseudarchaster aphrodite]
                                                   [Pseudarchaster concinnus]
                                                   [Pseudarchaster necator]
                                                   [Pseudarchaster ordinatus]
                                               Pseudarchaster gracilis gracilis
                                               Pseudarchaster gracilis tessellatus
                                             Pseudarchaster jordani
                                                   [Astrogonium jordani]
                                             Pseudarchaster macdougalli
                                             Pseudarchaster microceramus
                                                   [Aphroditaster microceramus]
                                                   [Fisheraster microceramus]
                                             Pseudarchaster mozaicus
                                                   [Astrogonium mozaicum]
                                             Pseudarchaster myobrachius
                                             Pseudarchaster obtusus
                                             Pseudarchaster oligoporus
                                             Pseudarchaster ornatus
                                             Pseudarchaster parelii
                                                   [Archaster longobrachialis]
                                                   [Astrogonium annectens]
                                                   [Astrogonium fallax]
                                                   [Astrogonium hystrix]
                                                   [Astrogonium intermedium]
                                                   [Astropecten parelii]
                                                   [Pentagonaster fallax]
                                                   [Plutonaster parelii]
                                                   [Pseudarchaster annectens]
                                                   [Pseudarchaster granuliferus]
                                                   [Pseudarchaster intermedius]
                                                   [Pseudarchaster parelii parelii]
                                                   [Tethyaster parelii]
                                             Pseudarchaster pectinifer
                                             Pseudarchaster pulcher
                                             Pseudarchaster pusillus
                                             Pseudarchaster roseus
                                                   [Astrogonium roseum]
                                                   [Mediaster roseus]
                                             Pseudarchaster tessellatus
                                                   [Astrogonium tessellatum]
                                                   [Pseudarchaster brachyactis]
                                                   [Pseudarchaster tesselatus]
                                             Pseudarchaster verrilli