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US and Canadian Western Interior | under construction: October 15, 2004 |
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| The dawn of the Tertiary? | This hadrosaur lower jaw is on display now at the Artis Geologisch museum, Amsterdam, but here it is as I found it in the Bug Creek valley, little north of Lonnie's bench, exposed some 15 m below the K/T boundary in the "gumbo" overbank deposits of the Hell Creek formation. | |
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| Coals in the Hell Creek area of Fort Peck reservoir badlands "Missouri breaks" Montana |