After Chlupáè & Kordule, 2002

<==o †Tuzoiida Simonetta & Delle Cave, 1975
   `--o †Tuzoiidae Raymond, 1935
      |?- †Tuzoia? dunbari Resser, 1930
      |?- †Tuzoia? peterseni Robison & Richards, 1981
      |?-o †Proboscicaris Rolfe, 1962
      |  |-- †P. agnosta Rolfe, 1962.
      |  `-- †P. hospes Chlupáè & Kordule, 2002
      |?- †Pseudoarctolepis Brooks & Caster, 1956
      `--o †Tuzoia Walcott, 1912
         |-- †T. retifera Walcott, 1912 [T. burgessensis Resser, 1930; T. canadensis Resser, 1930]
         |-- †T. australis Glaessner, 1979
         |-- †T. bispinosa Yuan & Zhao, 1999
         |-- †T. getzi Resser, 193O
         |-- †T. guntheri Robison & Richards, 1981
         |-- †T. magna Yuan & Zhao, 1999
         |-- †T. manchuriensis Resser & Endo in Resser, 1930
         |-- †T. nodosa Resser, 1930
         |-- †T. polleni Resser, 1930
         |-- †T. praemorsa Resser, 1930
         |-- †T. sinensis P’an, 1957
         |-- †T. spinosa Resser, 1930
         |?- †T. nitida Resser & Howell, 1938 (nomen dubium)
         |?- †T. vermontensis Resser & Howell, 1938 (nomen dubium)
         `?- †T.? parva (Walcott, 1912) (juveline)

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