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- proper n. A taxonomic class within the subphylum Pelmatozoa — the crinoids.
Sorry, no etymologies found.
The Crinoidea, in the abundance of stalked forms in the ancient formations as compared with their present rarity, seem to present us with a fair case of modification from a more embryonic towards a less embryonic condition.
Crinoidea, * Orthoceraitites, of the family of the Cephalopoda, corals, and, blended with these low organisms, fishes of the most singular forms, imbedded in the upper silurian formations.
Crinoidea is a small class compared to the others in the phylum symmetry.