crinoid


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Related to crinoid: class Crinoidea, Sea lilies

cri·noid

 (krī′noid′)
n.
Any of various echinoderms of the class Crinoidea, including the sea lilies and feather stars, that are characterized by a cup-shaped body, feathery radiating arms, and either a stalk or a clawlike structure with which they are able to attach to a surface.

[From New Latin Crinoīdea, class name : Greek krinon, lily + Greek -oeidēs, -oid.]

cri′noid′ adj.

crinoid

(ˈkraɪnɔɪd; ˈkrɪn-)
n
(Animals) any primitive echinoderm of the class Crinoidea, having delicate feathery arms radiating from a central disc. The group includes the free-swimming feather stars, the sessile sea lilies, and many stemmed fossil forms
adj
1. (Animals) of, relating to, or belonging to the Crinoidea
2. shaped like a lily
[C19: from Greek krinoeidēs lily-like]
criˈnoidal adj

cri•noid

(ˈkraɪ nɔɪd, ˈkrɪn ɔɪd)

n.
1. any echinoderm of the class Crinoidea, having a cup-shaped body with branched radiating arms, comprising the sea lilies and feather stars.
adj.
2. lilylike.
[1825–35; < Greek krinoeidḗs=krín(on) lily + -oeidēs -oid]
cri•noi′dal, adj.

cri·noid

(krī′noid′)
Any of various invertebrate sea animals having a cup-shaped body, feathery arms, and a stalk by which they attach themselves to a surface. Sea lilies and feather stars are types of crinoids.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.crinoid - primitive echinoderms having five or more feathery arms radiating from a central diskcrinoid - primitive echinoderms having five or more feathery arms radiating from a central disk
echinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodies
sea lily - crinoid with delicate radiating arms and a stalked body attached to a hard surface
comatulid, feather star - free-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms
Adj.1.crinoid - of or relating to or belonging to the class Crinoidea
References in periodicals archive ?
Dark bluish-grey slightly argillaceous to pure skeletal packstones and grey sorted crinoid grainstones of the Kaugatuma Formation (early Pridoli) are exposed on a 200 m long seashore (H.
In his decades of exploring the ocean's biodiversity using scuba, submersibles and robotic vehicles, Messing has previously described nine new crinoid species, but this one is the most curious, and the first one for which he has offered naming rights.
That is the conclusion of geologists who extracted the molecules directly from individual crinoid fossils in the laboratory, and determined that different species of crinoid contained different molecules.
ICON The original Hoff SPOOKY A white sea star UNUSUAL A stalked crinoid GRIPPING Stalked barnacles DISCOVERY A new octopus FULL FLOW Large anemone
As fish populations thrived in the Devonian, crinoid diversity and abundance remained low despite favorable conditions.
And on the beach at Holy Island, you can pick up St Cuthbert's Beads, the little coins of crinoid stems.
Siderite within the Barnsdall Formation of northeastern Oklahoma occurs in four varieties: (1) large nodules lacking a distinct central nucleus, concentrated in horizons bearing articulated crinoids; (2) small concretions with distinct skeletal nuclei consisting of infaunal bivalves and inarticulate brachiopods occurring in horizons relatively lacking in articulated crinoids and crinoid material; (3) large sideritized burrows occurring above crinoid horizons; and (4) concretions nucleated around former sites of soft tissue in large crinoids and productid brachiopods.
Gahn and Baumiller examined more than 2,500 crinoid fossils for evidence of arm regeneration, focusing on specimens dating back 290 million to 490 million years.