Crinozoa is a subphylum of mostly sessile echinoderms, of which the crinoids, or sea lilies and feather stars, are the only extant members.[1][2] 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 and the extinct Paracrinoidea (Cystoidea, Edrioasteroidea, and Rhombifera).[2]

See also

References

  1. ^ Newton, Alisa L.; Dennis, Michelle M. (2021-03-23), LaDouceur, Elise E.B. (ed.), "Echinodermata", Invertebrate Histology (1 ed.), Wiley, pp. 1–18, doi:10.1002/9781119507697.ch1, ISBN 978-1-119-50765-9, S2CID 261009894, retrieved 2023-08-04
  2. ^ a b "WoRMS - World Register of Marine Species - Crinozoa". www.marinespecies.org. Retrieved 2023-09-16.