More to explore:
Fossilized Shark Tooth
fossilized shark tooth
Megalodon fossil tooth
cardharocles auriculatus tooth (a.k.a. prehistoric shark tooth)
Fossil Megalodon Shark Tooth in Whale Vertebra.
fossil shark tooth - Ooooo! Look what passed by ...
Negaprion brevirostris (Shark Tooth)
6 5/8 inch Megalodon tooth, 3 1/8 inch fossil Great White and 1 1/2 inch modern day Great White tooth.
Fossil Crocodile Tooth