Above this is a layer of typical crinoid. gray sandstone, two feet thick, supporting a bed of softer Cuvier saw the truth that had escaped others, namely, shale than the first. Here the heads abound, being preserved that the Pentacrinus, instead of being a plant, was an ani- as described. This is… … locality where it was obtained is now called Corey’s Fig: 2.-ONYCHOCRINUS EXCULPTUS—(Natural Size.) the proboscis to such a distance as’ to prevent its Bluff, and is about six miles above the spot men- |immediate return. The currents thus made drew in young 1. The Root.—The comatula, and other free…
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