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Bookmark or Share- Crinoids: The Weird World of Feather Stars & Sea LiliesThe Crinoidea – or Feather Stars and Sea Lilies – are among the most ancient of the Echinoderms. Most of them consist of a set of many branched arms, connected to a central cup-shaped body – which in some cases possesses a stalk that keeps them attached to the substrate.
- Crinoid - WikipediaCrinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars [3] [4] or comatulids, are members of the largest crinoid order, Comatulida.
- Sea Lilies, Feather Stars & Stalked Echinoderms - BritannicaCrinoid, any marine invertebrate of the class Crinoidea (phylum Echinodermata) usually possessing a somewhat cup-shaped body and five or more flexible and active arms. The arms, edged with feathery projections (pinnules), contain the reproductive organs and carry numerous tube feet with sensory.
- Crinoidea - Digital Atlas of Ancient LifeClass Crinoidea Snapshot. Examples: sea lillies and feather stars; Ecology: marine filter feeders; Key features of group: pinnuled arms, multi-component stalk; Diversity: ~660 living sp., ~6,000 extinct sp. Fossil record: Ordovician to Recent
- Feather star | Crinoid, Brittle Star & Sea Lilies | BritannicaFeather star, any of the 550 living species of crinoid marine invertebrates (class Crinoidea) of the phylum Echinodermata lacking a stalk. The arms, which have feathery fringes and can be used for swimming, usually number five. Feather stars use their grasping “legs” (called cirri) to perch on.
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