Our Hemi and Her collection features authentic fossil shark teeth from the species hemipristis serra (aka “snaggletooth” shark) which is a prehistoric weasel shark. Every piece in this collection features authentic fossil shark teeth from a species of extinct prehistoric weasel sharks that lived approximately 15-18 million years ago. Each tooth represents an actual piece of our natural history that has withstood Earth's changes for millions and millions of years. All fossil shark teeth we use come from my personal fossil collection from a lifetime of excursions or your own personal shark tooth made into a custom piece! No sharks are harmed in the process...on the contrary, a portion of our sales supports conservation and care of live sharks at the South Carolina Aquarium.