View Original: | Bulletin 429 Plate XV B Cretaceous reptile burrow.jpg (1296x1025) | |||
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Keywords: Bulletin 429 Plate XV B Cretaceous reptile burrow.jpg Washington Showing below and to the left Nacatoch sand with burrow of some Cretaceous reptile now filled by later deposits above and to the right 1910 Oil and Gas in Louisiana with a Brief Summary of their Occurrence in Adjacent States Bulletin 429 United States Geological Survey Government Printing Office Washington 1910 G D Harris other versions PD-USGov Geology Oil |