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Paleocrinoidea :: Paleocrinoidea (n. pl.) A suborder of Crinoidea found chiefly in the Paleozoic rocks.

Blastoidea :: Blastoidea (n. pl.) One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.

Encrinoidea :: Encrinoidea (n. pl.) That order of the Crinoidea which includes most of the living and many fossil forms, having jointed arms around the margin of the oral disk; -- also called Brachiata and Articulata. See Illusts. under Comatula and Crinoidea..

Tessellata :: Tessellata (n. pl.) A division of Crinoidea including numerous fossil species in which the body is covered with tessellated plates.

Crinoid :: Crinoid (n.) One of the Crinoidea.

Articulata :: Articulata (v.) A subdivision of the Crinoidea.

Brachiata :: Brachiata (n. pl.) A division of the Crinoidea, including those furnished with long jointed arms. See Crinoidea..

Encrinus :: Encrinus (n.) A genus of fossil encrinoidea, from the Mesozoic rocks..

Crinoidean :: Crinoidean (n.) One of the Crinoidea.

Cystidea :: Cystidea (n. pl.) An order of Crinoidea, mostly fossils of the Paleozoic rocks. They were usually roundish or egg-shaped, and often unsymmetrical; some were sessile, others had short stems..

Crinoidea :: Crinoidea (n. pl.) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula..

Articulus :: Articulus (n.) A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.

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