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The majority of the teeth that come from this region are less than 3 inches long as Spinosaurus lost their teeth very frequently
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Usually ranging between 4 to 10 inches in length
Tooth Length: 2
The colors seen are caused by iron pyrite (black)
Fossil Fish (Knightia sp.) - Green River Formation The majority of the teethKnightia sp. is an extinct genus of freshwater bony fish that thrived in both North America and Asia during the Eocene Epoch (56 to 33. 9 million years ago). This Epoch took place during the Paleogene Period. This genus was first described in 1907 and is closely related to herrings and sardines. This is the state fossil of Wyoming and is considered the most commonly excavated fossil in the world. This fist had thick scales with conical teeth. Some of