Sprifer Mollusk
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An ancient mollusk from the Paleozoic time, Spirifer mucronatus.
Keywords
geology, shell, Brachiopod, early life form, Paleozoic, Silurian period, ancient mollusk, Spirifer mucronatusGalleries
Other MollusksSource
Dana, James D. New Text-Book of Geology (New York: Ivison, Blakeman & Company, 1883) 236
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