Labels:animal | text | invertebrate | ark shell OCR: "Further, as regards the fragments of these shells, it must be presumed that in such a locality there was a sea beach, where the shells were all cast up broken and divided and never in pairs, as they are found in the sea when alive, with two valves which form a covering the one to the other. And within the layers of the banks of rivers and of seashores they are found broken; and on the edges of the rocks, they are found infrequently and with the two valves together, like those which were left by the sea buried alive within the mud, which afterward dried up and in time became petrified." (10r)
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