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†Scaphiopus alexanderi Zweifel 1956

urn:lsid:organismnames.com:name:2749874

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†Scaphiopus alexanderi Zweifel 1956

Zweifel 1956. Two pelobatid frogs from the Tertiary of North America and their relationships to fossil and recent forms. American Museum Novitates, 1956: 1-45