VISABLE SCALES PISCACARA FOSSIL FISH. From the Green River Formation in Wyoming USA. Approx 50 million years old - Fish measures 140mm x 80mm. Limestone Measures Approx: 220mm x 220mm.The item "NATURAL PISCACARA FOSSIL FISH 140mm 50 million years old PERFECT BONE FINS st36" is in sale since Wednesday, December 4, 2019. This item is in the category "Collectables\Rocks, Fossils & Minerals\Fossils\Fish". The seller is "fossilcavern" and is located in Isle of WIght. This item can be shipped worldwide.