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†Mastigospira La Rocque 1949
urn:lsid:organismnames.com:name:2981162
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†Mastigospira La Rocque 1949
La Rocque 1949. New uncoiled Gastropods from the Middle Devonian of Michigan and Manitoba. Contributions from the Museum of Paleontology University of Michigan, 7 1949: pp. 113-122