Fossilized Shark Eye Shells

Large Shark Eyes, love Shark Eyes. very rare to find when diving.  These are fossilized. .. , very pretty, great for decorations.  

These shells were uncovered in the Calosahatchee formation.  These say the shells from this formation were from the Pliocene era. From about 2.6 million to 5.3 million years ago.  Some are even filled with matrix from that era.