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  Animalia
    Bilateria
     Deuterostomia
      Echinodermata
             [Eleutherozoa]
             [Pelmatoza]
             [Pelmatozoa]
        Asterozoa
               [Stelleroidea]
            Asteroidea
                  Valvatacea
                    Paxillosida
                           [Platyasterida]
                            Porcellanasteridae
                                   [Porcellanasterinae]
                                   [Cribellina]
                                     Abyssaster
                                             Abyssaster diadematus
                                                   [Hyphalaster diadematus]
                                             Abyssaster planus
                                                   [Hyphalaster planus]
                                             Abyssaster tara
                                                   [Hyphalaster tara]
                                     Benthogenia
                                             Benthogenia cribellosa
                                     Damnaster
                                             Damnaster tasmani
                                     Eremicaster
                                             Eremicaster crassus
                                                   [Eremicaster gracilis]
                                                   [Eremicaster tenebrarius]
                                                   [Eremicaster waltherii]
                                                   [Porcellanaster crassus]
                                                   [Porcellanaster gracilis]
                                                   [Porcellanaster tenebrarius]
                                                   [Porcellanaster waltharii]
                                             Eremicaster pacificus
                                                   [Porcellanaster pacificus]
                                             Eremicaster vicinus
                                                   [Porcellanaster vicinus]
                                     Hyphalaster
                                             Hyphalaster hyalinus
                                             Hyphalaster inermis
                                                   [Hyphalaster antonii]
                                                   [Hyphalaster fortis]
                                                   [Hyphalaster giganteus]
                                                   [Hyphalaster gracilis]
                                                   [Hyphalaster moseri]
                                                   [Hyphalaster parfaiti]
                                             Hyphalaster scotiae
                                     Lethmaster
                                             Lethmaster rhipidophorus
                                     Lysaster
                                             Lysaster lorioli
                                     Porcellanaster
                                           [Albatrossaster nudus]
                                           [Albatrossaster]
                                           [Albatrossia]
                                           [Caulaster]
                                             Porcellanaster ceruleus
                                                   [Albatrossaster richardi]
                                                   [Albatrossaster semimarginalis]
                                                   [Albatrossia semimarginalis]
                                                   [Caulaster dubius]
                                                   [Caulaster pedunculatus]
                                                   [Caulaster sladeni]
                                                   [Porcellanaster caeruleus]
                                                   [Porcellanaster caulifer]
                                                   [Porcellanaster coeruleus]
                                                   [Porcellanaster eremicus]
                                                   [Porcellanaster fragilis]
                                                   [Porcellanaster granulosus]
                                                   [Porcellanaster inermis]
                                                   [Porcellanaster irregularis]
                                                   [Porcellanaster pedunculatus]
                                                   [Porcellanaster sladeni]
                                                   [Porcellanaster tuberosus]
                                             Porcellanaster ivanovi
                                     Sidonaster
                                             Sidonaster vaneyi
                                                   [Sidonaster batheri]
                                                   [Sidonaster psilonotus]
                                     Styracaster
                                           [Chunaster]
                                           [Machairaster]
                                             Styracaster armatus
                                                   [Machairaster pictus]
                                                   [Styracaster edwardsi]
                                                   [Styracaster spinosus]
                                             Styracaster caroli
                                             Styracaster chuni
                                                   [Styracaster groenlandica]
                                             Styracaster clavipes
                                             Styracaster elongatus
                                             Styracaster horridus
                                                   [Chunaster scapanephorus]
                                             Styracaster longispinus
                                             Styracaster monacanthus
                                             Styracaster paucispinus
                                             Styracaster robustus
                                             Styracaster simplipaxillatus
                                             Styracaster transitvus
                                     Thoracaster
                                           [Pseudaster]
                                             Thoracaster cylindratus
                                                   [Hyphalaster valdividae]
                                                   [Pseudaster cordifer]
                                                   [Thoracaster alberti]
                                                   [Thoracaster magnus]
                                     Vitjazaster
                                             Vitjazaster djakonovi

Problematic Rooting (399508)
                              Macrourinae
                                     Albatrossia
                                             Albatrossia pectoralis
                                                   [Coryphaenoides pectoralis]