Likely a Diplomystus dentalus, very well preserved and detailed, fossil ghosted beneath in rock, likely Green River Formation, Wyoming
together with two fossilized tribolites on matrix, likely Moroccan, Middle Cambrian Period (540-490 million years old)
Fish: 18” x 34” x 1/4“, Larger tribolite: 14” x 18” x 2”, Smaller tribolite: Approx. 3" x 6" x 6”
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