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†Labra Speden 1966
urn:lsid:organismnames.com:name:2465197
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†Labra Speden 1966
Speden 1966. Paleozoology of Lamellibranch from the type area of Fox Hills formation (Upper Cretaceous, Maestrichtian), South Dakota. Dissertation Abstracts, 27B 1966: 521-522