Results for "National Science Foundation (U.S.)"

1. 

   Fossil Beds Near the Pierre Shale

   • Date: 1931-1932 Miocene Oligocene
   • Creator: Unknown
   • Creator: Unknown

2.  
3. 

   Expedition Members Excavating Fossils

   • Date: 1931-1932 Miocene Oligocene
   • Creator: Unknown
   • Creator: Unknown

4.  

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