The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States

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The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States

William Aubrey Cobban

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The late Cretaceous ammonites Scaphites leei Reeside and Scaph...William Aubrey Cobban

William Aubrey CobbanPublished 1969

Additional title page description: Three chronological forms each of Scaphites leei and Scaphites hippocrepis occur in dimorphic pairs and provide a means of correlating thin units of strata.

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Publisher	U.S. Govt. Print. Off.
Pages	29
Search language	english

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