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†Polaricyclus bordenensis Work & Mason 2003
urn:lsid:organismnames.com:name:1635780
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594
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†Polaricyclus bordenensis Work & Mason 2003
Work & Mason 2003. Mississippian (Middle Osagean) ammonoids from the Nada Member of the Borden Formation, Kentucky. Journal of Paleontology, 77(3), May 2003: 593-596