Category:Fossils of the Ptarmigan Formation
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Media in category "Fossils of the Ptarmigan Formation"
The following 3 files are in this category, out of 3 total.
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Smithsonian miscellaneous collections (1924) (14577298797).jpg 1,748 × 2,878; 789 KB
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Smithsonian miscellaneous collections (1924) (14761404684).jpg 1,828 × 2,950; 736 KB
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Smithsonian miscellaneous collections (1924) (14763762125).jpg 1,828 × 2,920; 739 KB