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Characteristic lower Cretaceous megafossils from northern Alaska / by Ralph W. Imlay.

By: Imlay, Ralph Willard, 1908-1989.
Material type: materialTypeLabelBookSeries: Geological Survey Professional Paper; 335.Publisher: Washington : United States Government Printing Office, 1961Description: 74 p., [20] h. de lam. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Alaska | Cretácico | Paleontología
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