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The Upper Cretaceous Ammonite Rhaeboceras Meek in the Western Interior o...
Bok av W A Cobban
Tarrantoceras Stephenson and Related Ammonoid Genera from Cenomanian (Up...
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The Upper Cretaceous (Turonian) Ammonite Family Coilopoceratidae Hyatt i...
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Some Acanthoceratid Ammonites from Upper Cenomanian (Upper Cretaceous) R...
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Cretaceous Ammonites from the Lower Part of the Matanuska Formation, Sou...
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The Late Cretaceous Ammonites Scaphites Leei Reeside and Scaphites Hippo...
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Stratigraphic Distribution of Some Pollen Types from the Campanian and L...
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Geohydrologic Units of the Mississippi Embayment and Texas Coastal Uplan...
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Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the Western Interior of the United States : Usgs Professional Paper 1445

Bok av W A Cobban