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Crinoidea |
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Crinoidea: see Echinodermata Echinodermata (əkī'nōdûr`mətə) [Gr. ..... Click the link for more information. ; feather star feather star, common name of a class of echinoderms that, as juveniles, are attached to the sea bottom by a stalk with rootlike branches; the mouth side faces upward. In the adult stage they break away from the stalk and move about freely. ..... Click the link for more information. ; sea lily sea lily, stalked echinoderm of the class Crinoidea. Sea lilies are ancient, having reached their peak in the Middle Mississippian period; about 5,000 fossil species are known. About 80 modern species remain. ..... Click the link for more information. . Crinoidea [krə′nȯid·ē·ə] (invertebrate zoology) A class of radially symmetrical crinozoans in which the adult body is flower-shaped and is either carried on an anchored stem or is free-living. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The stone is a light grey crinoidal packstone that contains abundant coral macrofossils (Fig. The wells utilized horizontal drilling techniques to explore three potential zones: the Middle Daly Member and the Cruickshank Crinoidal Member in the Lodgepole formation and the underlying Bakken formation. The wells utilized horizontal drilling techniques to explore three potential zones: the Middle Daly Member and the Cruickshank Crinoidal Member in the Lodgepole formation and the underlying Bakken formation. |
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