Crinoidea

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Related to Crinoids: class Crinoidea, Sea lilies
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Synonyms for Crinoidea

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This is supported by the morphology of most crinoids inhabiting this site, for example, the possession of a strong cup with a reinforced stem attachment, and with arms housed in specialized projections, as in Eucalyptocrinites, or the massive cups of pisocrinids with strong arms.
Fossils of juvenile crinoids are rare, he explains.
Although most crinoid fossils are from "spindly, plant-like animals anchored to sea floor rocks," the 1 to 4 millimeter star-shaped parts of these crinoids that the scientists dug up were used to grab and hold onto objects but were not found attached to anything.
Inspect them closely and you may make out the curve of a gastropod, the cone-shaped shell of a cephalopod, or a disc or rod-like structure that was once a piece of a crinoid stem.
Parasites, microflora, echinoderms, crinoids, and reefs are among the ecological features described.
2 Colony of fossil crinoids Traumatocrinus Species, Central Asia Mid Triassic Period, 58x86cm Chris Moore Fossils at The London International Fine Art Fair
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.
Crinoids are flower-shaped animals that grow on stalks rooted to the ocean floor.
Crinoids also feature on the knobbly bollards linked by a chain round the Steble Fountains, in front of the Walker Art Gallery.
To the public, mass extinction conjures up the demise of the dinosaurs due to a killer asteroid, but past cataclysms can be seen just as clearly in the records of marine species of clams, corals, crinoids, coccolithophores, and the like.
Sea shells, St Cuthbert's Beads (fossilised crinoids found on the island) and fishing twine can be seen amidst the vivid red, gold and green cloth in the rug.
Figure 8 Semantic Feature Relationship Chart Important Ideas Type of Life Location Extinct Not Important Plant Animal Sea Land Lakes Extinct Extinct Words Trilobites Crinoids Giant cats Coral Bryozoans Guide fossils Dinosaurs Fresh water fish Brachiopods Small horses Ferns Enormous wined bugs Trees Key: + = positive relationship; -- = negative relationship; 0 = non relationship; ?