After Parker, 1981 and “The Tree of Life”

<==o Myodocopa Sars, 1866
   |--o Myodocopida Sars, 1866
   |  `--o Myodocopina Sars, 1866
   |     `--o Cypridinoidea Baird, 1850
   |        |-- Cylindroleberididae Müller, 1906
   |        |-- Cypridinidae Baird, 1850
   |        |-- Philomedidae Müller, 1906
   |        |-- Rutidermatidae Brady & Norman, 1896
   |        `-- Sarsiellidae Brady & Norman, 1896
   `--o Halocyprida Dana, 1853
      |--o Cladocopina Sars, 1865
      |  `--o Polycopoidea Sars, 1865
      |     `-- Polycopidae Sars, 1865
      `--o Halocypridina Dana, 1853
         |--o Halocypridoidea Dana, 1853
         |  `-- Halocyprididae Dana, 1853
         `--o Thaumatocypridoidea Müller, 1906
            `-- Thaumatocyprididae Müller, 1906

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