A recent diving trip off the coast of Florida resulted in an ancient discovery. Kristina Scott found a 6-inch megalodon shark tooth while fossil diving in Venice. She said she’s been fossil diving for ...

A recent diving trip off the coast of Florida resulted in an ancient discovery. "After I pulled this one up, I knew I had something every other fossil diver dreams about," Kristina Scott said.

But shifting market and political forces challenge state’s otherwise reliable and expanding trona mining industry.