Category:Fossils from the Trenton Formation

Media in category "Fossils from the Trenton Formation"

The following 6 files are in this category, out of 6 total.

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  MPEP407-11.jpg 1,504 × 1,000; 651 KB
  
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  On a new genus of siliceous sponges from the Trenton formation at Ottawa (microform) (1889) (20620258405).jpg 1,716 × 2,912; 1.7 MB
  
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  Smithsonian miscellaneous collections (1924) (14783648073).jpg 1,792 × 2,886; 598 KB
  
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  The Geology of Minnesota (1897) (14584062790).jpg 3,574 × 2,090; 414 KB
  
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  The Geology of Minnesota (1897) (14584073700).jpg 3,366 × 1,818; 438 KB
  
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  The Geology of Minnesota (1897) (14768405974).jpg 3,576 × 1,622; 218 KB