Late Devonian brachiopod fossils were preserved as molds in a fine-grained sandstone (Big Creek, Hornell, New York, N 42.364361, W 77.645760). Individual fossil samples like this are the basis for ...
Inset images are of common invertebrate fossils found in South Africa. Clockwise from left: Brachiopod shell bed of Australospirifer and Australocoelia, the trilobite Eldredgeia, brachiopod shells of ...
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