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词条 Crinozoa
释义

  1. Classes within Crinozoa

  2. See also

  3. References

{{Taxobox
| name = Crinozoans
| fossil_range = {{fossilrange|503|0|Cambrian - Recent}}
| image = Crinoid on the reef of Batu Moncho Island.JPG
| image_caption = Crinoid on the reef of Batu Moncho Island, Indonesia
| regnum = Animalia
| phylum = Echinodermata
| subphylum = Crinozoa
| subdivision_ranks = Classes
| subdivision =
  • Crinoidea
  • Paracrinoidea † Regnéll, 1945
  • Cystoidea † von Buch, 1846
  • Edrioasteroidea †
  • Rhombifera †

}}

Crinozoa is a subphylum of mostly sessile echinoderms, of which the crinoids, or sea lilies, are the only extant members. Crinozoans have an extremely extensive fossil history which may or may not extend into the Precambrian (provided the enigmatic Ediacaran Arkarua can be positively identified as an edrioasteroid).

Classes within Crinozoa

The classes currently contained within Crinozoa include Crinoidea, Cystoidea, Edrioasteroidea, and Rhombifera.

See also

  • List of echinoderm orders
  • Blastoids, superficially similar-appearing echinoderms that belong to a different echinoderm subphylum.

References

{{Taxonbar|from=Q2503841}}{{paleo-echinoderm-stub}}

5 : Crinozoa|Animal subphyla|Paleozoic invertebrates|Living fossils|Extant Cambrian first appearances

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