Sixgill Shark Tooth

Hexanchus species

Sixgill Shark Tooth

A comb-shaped tooth with a row of descending cusps like a saw blade, from a deepwater shark.

Typical size
0.5–1.5 in
How often it turns up
Rare
Collecting
Check local rules

Beach-found teeth above the waterline are generally fine to keep. Digging in rivers, on state land, or on submerged bottoms needs a Florida fossil permit.

Handling
Sharp edges

How to tell it apart

  • Row of stepped cusps decreasing in size
  • Rectangular overall outline
  • Rare, usually fossil

Found one?

Photograph it and BeachNut will rank the likely matches, then log it to your collection.

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