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Hemipristis lower teeth except the thin one which is probably a sand tiger (and the tiger shark in the upper right)

@bill-heim thanks! I keep finding more and more and it is interesting to know what they are. Any idea how to tell how old the teeth are? Some are darker in color than others. Brown, black, grayish

Color has nothing to do with age. Color is produced by the minerals from the material it was buried in changing the chemistry of the tooth. Teeth that end up in the water tend to be dark brown or blackish due to a chemical reaction with phosphate in the teeth. The location and soil/rock layers they come from will allow you to determine the age.

sand tigers