Central Taxonomic Thesaurus
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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Entognatha
                    Collembola
                      Symphypleona
                          Sminthuroidea
                            Sminthuridae
                                   [Smynthuridae]
                              Sminthurinae
                                     Neosminthurus
                                             Neosminthurus bakeri
                                             Neosminthurus clavatus
                                                   [Neosminthurus curvisetis]
                                                   [Neosminthurus purpureus]
                                                   [Sminthurus curvisetis]
                                             Neosminthurus richardsi
                                     Sminthurus
                                           [Smynthurus]
                                             Sminthurus adirondackus
                                             Sminthurus anomalus
                                             Sminthurus argenteornatus
                                                   [Sminthurus argenteornatus albescens]
                                             Sminthurus banksi
                                             Sminthurus butcheri
                                                   [Sminthurus spinulosus]
                                             Sminthurus eiseni
                                             Sminthurus fitchi
                                                   [Sminthurus obscurus]
                                                   [Sminthurus trilineatus]
                                             Sminthurus floridanus
                                             Sminthurus incisus
                                             Sminthurus medialis
                                             Sminthurus packardi
                                             Sminthurus purpurescens
                                                   [Papirius purpurescens]
                                                   [Sminthurus fraternus]
                                                   [Sminthurus nigripes]
                                             Sminthurus schoetti
                                             Sminthurus sylvestris
                                                   [Sminthurus facialis]
                                             Sminthurus viridis
                                                   [Podura viridis]
                              Sphyrothecinae
                                     Sphyrotheca
                                             Sphyrotheca confusa
                                             Sphyrotheca minnesotensis
                                             Sphyrotheca mucroserrata
                                             Sphyrotheca multifasciatus
                                                   [Sminthurus multifasciatus]
                                             Sphyrotheca nani