fossil

Fossil shark tooth

Likely Otodus megalodon (species identification uncertain from image)

AI-generated identification · may be incorrect

A fossilized tooth with a dark tan-brown crown, smooth enamel, and porous mineralized root; enamel is about Mohs 5–6, while the root is softer and more porous. The triangular crown and robust root are characteristic of fossil lamniform shark teeth.

Identified August 9, 2026More fossil →

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Physical properties

Formation & geological history

Formed from a shark tooth originally composed of calcium phosphate (apatite), later mineralized during burial in marine sediments. Megalodon lived mainly during the Miocene–Pliocene, roughly 23–3.6 million years ago.

Uses & applications

Primarily a collector’s fossil, educational specimen, or jewelry pendant; it has no industrial use. Value depends strongly on size, completeness, enamel quality, color, provenance, and whether it is restored.

Geological facts

Megalodon teeth can exceed 7 inches (18 cm), though this specimen appears much smaller. Dark coloration commonly results from groundwater minerals replacing or staining the original tooth material.

Field identification & locations

Commonly found in former marine deposits, especially coastal sediments of Florida, South Carolina, North Carolina, Morocco, and parts of Australia. Identify by a broad triangular enamel crown, distinct root lobes, and fossil mineral staining; exact species requires scale and diagnostic features.