Spinosaurus was the longest of the known predatory dinosaurs. It is best known for its sail-back, which would have been used as mating display or possibly to signal to other Spinosaurs where it was in the river. They also had long and round teeth, perfect for spearing fish.
This cast Spinosaurus small tooth measures over 3.5 inches long. This is a cast of the original fossil, research grade in quality polyresin and hand-painted. Colors may vary.
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