fossil

Fossil Shark Tooth

Otodus sp. or Carcharocles sp. (likely fossilized Chondrichthyes)

Hardness: 5 (enameled surface), Color: Dark grey to charcoal, Luster: Vitreous to dull, Structure: Non-mineralized collagen replaced by apatite or silica

Identified July 6, 2026More fossil →

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Physical properties

Hardness: 5 (enameled surface), Color: Dark grey to charcoal, Luster: Vitreous to dull, Structure: Non-mineralized collagen replaced by apatite or silica

Formation & geological history

Formed in marine environments during the Paleogene or Neogene periods; organic material is replaced by minerals from the surrounding sediment over millions of years.

Uses & applications

Primarily for educational collections, jewelry making (pendants), and historical study.

Geological facts

Shark teeth are the most common shark fossils because they are replaceable; a single shark can lose thousands of teeth in its lifetime. The dark color is usually due to phosphate or iron minerals in the sediment.

Field identification & locations

Identify by the characteristic triangular shape, sharp edges, and a root base (sometimes missing). Commonly found in coastal sedimentary deposits or riverbeds.

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