Cephalodiscida

Cephalodiscida
Cephalodiscida
Scientific classification
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Order: Cephalodiscida
Families

Atubaridae
Cephalodiscidae

Cephalodiscida is one of two orders in the class Pterobranchia, which are small, worm-shaped animals. Members belong to the hemichordates.[1][2] Species in this order are sessile, living in clear water and secrete tubes on the ocean floor.[3]

Taxonomy

The order is a small one, with only two known families, each containing a single genus.

Order Cephalodiscida

  • Family Atubaridae
    • Genus Atubaria
      • Species Atubaria heterolopha Sato, 1935
  • Family Cephalodiscidae
    • Genus Cephalodiscus
      • Cephalodiscus agglutinans Harmer & Ridewood, 1914
      • Cephalodiscus atlanticus Bayer, 1962
      • Cephalodiscus australiensis author unknown
      • Cephalodiscus calciformis Emig, 1977
      • Cephalodiscus densus Andersson 1907
      • Cephalodiscus dodecalophus McIntosh 1882
      • Cephalodiscus evansi Ridewood
      • Cephalodiscus fumosus John, 1932
      • Cephalodiscus gilchristi Ridewood, 1908
      • Cephalodiscus gracilis Harmer 1905
      • Cephalodiscus graptolitoides Dilly 1993
      • Cephalodiscus hodgsoni Ridewood, 1907
      • Cephalodiscus indicus Schepotieff 1909
      • Cephalodiscus kempi John, 1932
      • Cephalodiscus levinsoni Harmer
      • Cephalodiscus nigrescens Lankester, 1905
      • Cephalodiscus sibogae Harmer 1905
      • Cephalodiscus solidus Andersson, 1907

References

  1. ^ animaldiversity.ummz.umich.edu
  2. ^ Eol.org
  3. ^ Shipley, A.E. (1902). Zoology: An Elementary Textbook. Cambridge: Cambridge University Press.


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