Category:Phosphatic limestone

Media in category "Phosphatic limestone"

The following 2 files are in this category, out of 2 total.

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  Helicoprion ferrieri (fossil shark tooth whorl) in phosphatic limestone (Phosphoria Formation, mid-Permian; Waterloo Mine, near Montpelier, Idaho, USA) 1 (34367874135).jpg 3,955 × 2,996; 7.77 MB
  
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  Helicoprion ferrieri (fossil shark tooth whorl) in phosphatic limestone (Phosphoria Formation, mid-Permian; Waterloo Mine, near Montpelier, Idaho, USA) 2 (34367856855).jpg 3,952 × 3,000; 6.98 MB