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Contents

   



(Top)
 


1 Characteristics  





2 Distribution  





3 References  














Hyocrinida






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From Wikipedia, the free encyclopedia
 


Hyocrinida
Hyocrinus sp.
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Hyocrinida[1]
Synonyms[1]

Hyocrinina

Hyocrinida is an orderofsea lilies which contains a single extant family, Hyocrinidae.[1]

Characteristics[edit]

Members of this order have long slender stems consisting of a large number of identical columnar units. There are no cirri, and the basal disc of the stem attaches directly to the substrate. The calyx is globular or conical, and consists of five widely-spaced, undivided arms attached to five radial ossicles.[2]

Distribution[edit]

Hyocrinus cyanae

Most hyocrinids are found at depths below 700 m (2,300 ft), in the range 400 to 6,300 m (1,300 to 20,700 ft), in all the ocean basins and on seamounts.[2]


A hyocrinid observed off North Atlantic by the Okeanos Explorer program.


References[edit]

  1. ^ a b c Messing, Charles (2013). "Hyocrinida". WoRMS. World Register of Marine Species. Retrieved 13 March 2019.
  • ^ a b O'Hara, Timothy; Byrne, Maria (2017). Australian Echinoderms: Biology, Ecology and Evolution. Csiro Publishing. pp. 189–190. ISBN 978-1-4863-0763-0.

  • t
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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Hyocrinida&oldid=1152534845"

    Categories: 
    Hyocrinida
    Articulata (Crinoidea)
    Echinoderm orders
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    This page was last edited on 30 April 2023, at 20:43 (UTC).

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