They have 40 or more teeth in each jaw. Behind the functional rows or teeth are seven other rows of teeth developing into mature dentures to replace teeth as they are shed or lost. In ten years, an average Tiger shark can produce as many as 24,000 teeth. Besides sharks teeth, fossils of other marine creatures are also found in this area. Because millions of years ago most of Florida was under water, many fossils are found inland as well as on the beaches.
State law prohibits digging without a permit however.
Identification of sharks teeth, which come in many different shapes and sizes, is relatively easy. All of the teeth in the mouth of a single type of shark are the same shape. The shape of the teeth of each species is distinct. Local book stores offer many books on the subject. For millions of years, sharks have lived and died in the Gulf of Mexico.