Qianshi limestone in Yangquan City, north China’s coal-rich Shanxi Province / well-preserved petalodus teeth Studies in the samples have shown that the petal-shaped teeth have a crown that looks like a snout and has a long, tongue-shaped root. Shark petal-shaped teeth or petalodus teeth about 360-250 million / 360 million and 250 million yeras ago / Primitive fish / found years ago. In terms of size, the shark’s fossil teeth resemble those of the Great White Shark. Paleontologists say the body length of this ancient prehistoric giant shark ranged from three to five meters / 3 to 5 meters /.
Shark fossils have been found in many parts of the northern hemisphere. Shark fossils have been found not only in Europe and the United States, but also in China and Japan. This shows that it has the ability to migrate across the ocean. Researchers say that this shark must be a predator with strong swimming skills. Studies on this have been published in Acta Geologica Sinica.