fossil

Fossilized Shark Tooth

Selachimorpha fossil

AI-generated identification · may be incorrect

Hardness varies based on replacement minerals (often 5-7). Color ranges from white to black depending on sediment. Displays characteristic triangular shape with or without serrations.

Identified September 23, 2026More fossil →

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Physical properties

Hardness varies based on replacement minerals (often 5-7). Color ranges from white to black depending on sediment. Displays characteristic triangular shape with or without serrations.

Formation & geological history

Formed when a shark tooth is buried in sediment and organic material is replaced by minerals over millions of years.

Uses & applications

Collected by enthusiasts, used in jewelry, and studied by paleontologists to understand ancient marine ecosystems.

Geological facts

Sharks constantly shed and replace their teeth, making them one of the most common vertebrate fossils.

Field identification & locations

Identified by its distinctive triangular shape, enamel coating (if preserved), and sometimes root structure. Commonly found on beaches and in marine sedimentary deposits.