Crinozoa

Crinozoans Temporal range: Cambrian - Recent PreЄ Є O S D C P T J K Pg N
Crinoid on the reef of Batu Moncho Island, Indonesia
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Subphylum:	Crinozoa
Classes
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).

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