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The animal remains are chiefly confined to the slate beds, those named from Bala, in Wales, being the most prolific. Zoophyta, polyparia, crinoidea, conchifera, and crustacea, are the orders of the animal kingdom thus found in the earliest of earth's sepulchres.
In their forms they more frequently resemble the reef-building polyparia of the Pacific than do the corals of any other member of the Oolite. The last-mentioned stars are supposed to represent a perfected condition, and the others an immature state.
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