A fossil enthusiast recently discovered a fossilized tooth dating back 270 million years from a petalodont (petal-toothed) shark in the mountains of Qujing, Southwest China's Yunnan Province.
NARRAGANSET – For the second time this year, a fossilized great white shark tooth has been found at Narragansett Town Beach, according to the Atlantic Shark Institute in Wakefield. Last summer ...