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†Sourimis Speden 1970
urn:lsid:organismnames.com:name:2310378
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lliilliMmd
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†Sourimis Speden 1970
Speden 1970. The type Fox Hills Formation, Cretaceous (Maestrichtian), South Dakota. Part 2. Systematics of the Bivalvia. Bull. Peabody Mus. nat. Hist., No. 33 1970: 1-222,42 pis