Temporal range: Cambrian - Recent
|Crinoid on the reef of Batu Moncho Island, Indonesia|
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
- List of echinoderm orders
- Blastoids, superficially similar-appearing echinoderms that belong to a different echinoderm subphylum.
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