In the Kits: #12: Shark tooth (specifically, the enamel of the tooth) Recrystallization - A process by which the minerals making up the original shell or bone of a fossil change into a different ...

The fossil is from the left side an upper jaw, Godfrey also said, adding that the size of the tooth indicated that the shark — considered by scientists to be a "transoceanic superpredator," acco ...