Dugong Rib

Metaxytherium species

Dugong Rib

A dense, heavy, cigar-shaped bone from an extinct sea cow, so solid it feels like stone.

Typical size
3–12 in
How often it turns up
Fairly common
Collecting
Archaeological, leave in place

Vertebrate fossils collected from state-owned land or submerged bottoms in Florida require a fossil permit from the Florida Museum of Natural History. Beach-washed finds above the waterline are generally fine, but know your site.

Handling
Safe to handle

How to tell it apart

  • Extremely dense and heavy
  • Smooth cylindrical shape, often broken at both ends
  • Cream to dark brown

Found one?

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