fossil

Fossilized shark tooth

Shark tooth fossil, likely *Otodus megalodon* or a related lamniform shark

AI-generated identification · may be incorrect

The tooth has a dark brown fossilized crown with a triangular shape and apparent serrations, embedded in or displayed with a souvenir card. Fossil teeth are mainly phosphatized calcium phosphate (apatite), typically Mohs hardness about 5, with dull to glossy luster and no prominent cleavage.

Identified September 2, 2026More fossil →

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Physical properties

Formation & geological history

Shark teeth were shed continuously and buried in marine sediments; groundwater replaced or mineralized the original tissues over millions of years. Megalodon teeth commonly date from the Miocene–Pliocene, roughly 23–2.6 million years ago.

Uses & applications

Primarily collected, displayed, and used in educational souvenirs; attractive large specimens may be jewelry or décor. They have no significant industrial use.

Geological facts

Megalodon teeth can exceed 15 cm, though this specimen appears much smaller. Fossilization commonly darkens enamel and preserves a contrasting root, while genuine serrations may be visible along the cutting edges.

Field identification & locations

Commonly found in marine sediment deposits, especially Florida, South Carolina, North Carolina, Morocco, and Peru. Check for natural enamel luster, genuine serrations, an irregular fossilized root, and avoid assuming species from the souvenir label alone.