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†Vesperispira Yancey, Strong & Hanger 2000
urn:lsid:organismnames.com:name:1651916
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742
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†Vesperispira Yancey, Strong & Hanger 2000
Yancey, Strong & Hanger 2000. The genus Vesperispira (Gastropoda: Pleurotomarioidea) from the Permian of two displaced terranes, western United States. Journal of Paleontology, 74(4), July 2000: 741-744