crinoid

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crinoid

any echinoderm of the class Crinoidea, including the present-day feather stars and sea lilies. They are common fossils from the CAMBRIAN PERIOD throughout geological history, and are mainly sedentary. Antodon is free-living in British waters.
References in periodicals archive ?
Tennessee "marble," a pink bryozoan/ crinoidal limestone from the Holston Formation of eastern Tennessee is also evident in Erie Street Cemetery and Ridgeville Cemetery.
The upper Fusselman is dominated by widespread thick, crinoidal grainstones, and lesser amounts of dolomitic wackestone to skeletal packstone.
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.
Carbonates of the studied wells are mainly of coarse-grained bioclastic, crinoidal, brachiopod and stromatoporoid limestones intercalated with marls (Fig.
The bioclastic limestones consist mainly of transported crinoidal fragments, but brachiopods, corals, fusulinids, and even plant remains occur as well.