Cephalodiscida

Cephalodiscida
Temporal range:
Cephalodiscus dodecalophus
Scientific classification
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Order: Cephalodiscida
Fowler, 1892
Families
Synonyms
  • Cephalodiscoidea Beklemishev, 1951

Cephalodiscida is one of two orders in the class Pterobranchia, which are small, worm-shaped animals. Members belong to the hemichordates.[2][3] Species in this order are sessile, living in clear water and secrete tubes on the ocean floor.[4]

Taxonomy

The following taxa are recognised in the order Cephalodiscida:[1][5][6]

  • Order Cephalodiscida Fowler, 1892
    • Family Cephalodiscidae Harmer, 1905
      • Genus Atubaria Sato, 1936
      • Genus Cephalodiscus M'Intosh, 1882
      • Genus †Aellograptus Obut, 1964
      • Genus †Eocephalodiscus Kozłowski, 1949
      • Genus †Melanostrophus Öpik, 1930
      • Genus †Pterobranchites Kozłowski, 1967
    • Family †Rotaciurcidae Briggs & Koch, 2023[6]

References

  1. ^ a b Maletz, Jörg; Gonzalez, Paul (2017-02-15). "Treatise Online no. 100: Part V, Second Revision, Chapter 14: Order Cephalodiscida: Introduction and systematic descriptions". Treatise Online. doi:10.17161/to.v0i0.6674. ISSN 2153-4012.
  2. ^ animaldiversity.ummz.umich.edu Archived June 29, 2011, at the Wayback Machine
  3. ^ Eol.org
  4. ^ Shipley, A.E. (1902). Zoology: An Elementary Textbook. Cambridge: Cambridge University Press.
  5. ^ Maletz, Jörg (2014). "The classification of the Pterobranchia (Cephalodiscida and Graptolithina)". Bulletin of Geosciences. 89 (3): 477–540. doi:10.3140/bull.geosci.1465. ISSN 1214-1119.
  6. ^ a b c Briggs, Derek E. G.; Koch, Nicolás Mongiardino (2023-12-04). "A Silurian pseudocolonial pterobranch". Current Biology. 33 (23): 5225–5232.e3. doi:10.1016/j.cub.2023.10.024. ISSN 0960-9822. PMID 37935193.

Further reading

  • Harmer, S. F. (1905). "The Pterobranchia of the Siboga-expedition with an account of other species". Siboga Expedition Monograph. 26: 1–131.
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