<==o Caudofoveata Boettger, 1955 [Crystallophrissonidea; Chaetodermatidea; Chaetodermatida Simroth, 1893]
   |-- Prochaetodermatidae Salvini-Plawen, 1975
   `--o Chaetodermida [Chaetodermatidea; Chaetodermatida Simroth, 1893]
      |--o Limifossoridae Salvino-Plawen, 1970
      |  `--o Limifossor Heath, 1904
      |     |-- L. fratula Salvini-Plawen, 1992
      |     |-- L. hexadentatus Heath, 1911
      |     |-- L. holopeltatus Salvini-Plawen, 1992
      |     |-- L. profundus Salvini-Plawen, 1992
      |     `-- L. talpodeus Salvini-Plawen, 1992
      |--o Metachaetodermatidae Ivanov, 1979 [Limifossoridae Salvino-Plawen, 1970]
      |  `--o Metachaetoderma Thiele, 1913
      |     `-- M. challengeri (Nierstrasz, 1902)
      |--o Scutopidae Ivanov, 1979 [Limifossoridae Salvino-Plawen, 1970 (in partim)]
      |  |--o Psilodens Salvini-Plawen, 1977
      |  |  |-- P. elongatus (Salvini-Plawen, 1972) [Limifossor elongatus Salvini-Plawen, 1972]
      |  |  `-- P. tenuis (Salvini-Plawen, 1972) [Psilodens tennuis (Salvini-Plawen, 1972)]
      |  `--o Scutopus Salvini-Plawen, 1968
      |     |-- S. chilensis Salvini-Plawen, 1972
      |     |-- S. megaradulatus Salvini-Plawen, 1972
      |     |-- S. robustus Salvini-Plawen, 1970
      |     `-- S. ventrolineatus Salvini-Plawen, 1968
      |-- Chaetodermatidae Theel, 1875 [incl. Crystallophrissonidae]
      `-- Falcidentidae Ivanov, 1979

Reference(s):


Special thanks to:

Jos H. M. Dols, for gathering taxonomic information and species of these animals.