Giant squid Architeuthis dux, copyright NTNU Vitenskapsmuseet.

Belongs within: Neocoleoidea.
Contains: Loliginidae, Spirulida, Onychoteuthidae, Ommastrephidae, Histioteuthidae.

The Teuthida, squids, are a group of elongate-bodied cephalopods with the shell reduced to an internal, feather- or rod-shaped, gladius, and with ten circum-oral appendages including two contractile tentacles. The Cranchiidae, glass squids, have the coelom modified into a large buoyancy chamber that allows the squid to float passively in the water column.

Teuthida [Oegopsida] MG-H11
    |–Cranchiidae P61
    |    |–Cranchia scabra Leach 1817 GO06, MG-H11
    |    |–Liocranchia MG-H11
    |    |–Megalocranchia Pfeiffer 1884 P61
    |    |    |–*M. maxima P61
    |    |    `–M. pardus Berry 1916 P61
    |    |–Teuthowenia Chun 1910 P61
    |    |    |–*T. megalops P61
    |    |    `–T. antarctica Chun 1910 P61
    |    `–Pyrgopsis de Rochebrune 1884 P61
    |         |–*P. rhynchophora P61
    |         `–P. pacificus (Issel 1908) P61
    `–+–Loliginidae GO06
       `–+–+–Spirulida GO06
          |  `–+–Onychoteuthidae GO06
          |     `–Ommastrephidae GO06
          `–+–Histioteuthidae GO06
             `–+–Lepidoteuthis GO06 [Lepidoteuthididae YVD98]
                |    `–L. grimaldii GO06
                `–Architeuthis Steenstrup 1857 GO06, P61 [Architeuthidae]
                     |–*A. dux P61
                     |–A. kirki Robson 1887 P61
                     |–A. longimanus Kirk 1888 P61
                     |–A. stockii Kirk 1882 P61
                     `–A. verrilli Kirk 1882 P61

Teuthida incertae sedis:
  Chiroteuthididae YVD98
    |–Chiroteuthis veranyi H04
    |–Asperoteuthis YVD98
    `–Grimalditeuthis YVD98
  Mastigoteuthis [Mastigoteuthidae] MG-H11
    |–M. cordiiformis Chun 1908 MG-H11
    |–M. inermis YVD98
    `–M. magna YVD98
  Chtenopterygidae YVD98
  Bathyteuthididae YVD98
  Enoploteuthidae YVD98
    |–Enoploteuthis MG-H11
    `–Pterygioteuthis Fischer 1895 P61
         `–*P. giardi Fischer 1895 P61
  Gonatidae YVD98
    |–Gonatus fabricii W81
    `–Gonatopsis YVD98
  Thysanoteuthididae YVD98
  Jobiniteuthis [Jobiniteuthididae] YVD98
    `–J. portieri YVD98
  Octopoteuthididae YVD98
  Neoteuthididae YVD98
  Lycoteuthididae YVD98
  Pyroteuthididae YVD98
  Ancistrocheiridae YVD98
  Glochinomorpha [Glochinomorphidae] D93
    `–G. stifeli Gordon 1971 D93
  Plesioteuthididae [Prototeuthina] D93
    |–Maioteuthis maestrichtensis (Binkhorst van den Binkhorst 1862) D93
    `–Paraplesioteuthis D93
         |–P. hastata (Münster 1843) D93
         `–P. sagitata (Münster 1843) D93
  Mesoteuthina D93
    |–Palaeololiginidae D93
    |    |–Teudopsis glevensis (Smithe 1877) D93
    |    `–Parateudopsis libanotica (Naef 1922) D93
    `–Trachyteuthididae D93
         |–Actinosepia canadensis Whiteaves 1897 D93
         `–Trachyteuthis D93
              |–T. hastiformis M79
              `–T. palmeri (Schevill 1950) D93
  Muensterellidae [Kelaenina] D93
    |–Muensterella scutellaris (Münster 1843) D93
    |–Calaenoteuthis incerta Naef 1922 D93
    `–Tusoteuthis longa Logan 1898 D93

*Type species of generic name indicated


[D93] Doyle, P. 1993. Mollusca: Cephalopoda (Coleoidea). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 229–236. Chapman & Hall: London.

[GO06] Giribet, G., A. Okusu, A. R. Lindgren, S. W. Huff, M. Schrödl & M. K. Nishiguchi. 2006. Evidence for a clade composed of molluscs with serially repeated structures: monoplacophorans are related to chitons. Proceedings of the National Academy of Sciences of the USA 103 (20): 7723–7728.

[H04] Haeckel, E. 1899–1904. Kunstformen der Natur. Bibliographisches Institut: Leipzig und Wien.

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[M79] Müller, A. H. 1979. Fossilization (taphonomy). In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A2–A78. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[W81] Watson, L. 1981. Sea Guide to Whales of the World. Hutchinson: London.

[YVD98] Young, R. E., M. Vecchione & D. T. Donovan. 1998. The evolution of coleoid cephalopods and their present biodiversity and ecology. South African Journal of Marine Science 20: 393–420.

Last updated: 18 November 2021.

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