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Discovered - 02/12/1947
40-50 million years ago
Each of these cut and polished slabs originates from Indonesia and is approximately 20-23 million years old
often including scale and other soft tissue traces against a high contrast laminated limestone slab
are found in a matrix of thick
Fish Fossil - Knightia Eoceana Shark Tooth Discovered - 02/12/1947During the Eocene, 40 50 million years ago, vast shoals of freshwater fish inhabited a large shallow inland sea across the American West. The herring like fish of the genus Knightia were far and away the most abundant freshwater fish during this era, and because of this they are one of the most frequently found vertebrate fossils on earth. Originating from the famed Green River Formation in Wyoming, fossils of Knightia eocaena and their close
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