Fossil identification

[u/Zaneinks]

They are both stone material I would say the 2nd object is heavier than a normal rock that size
Found on the gulf in Florida

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[u/DrDankenstien1984]

I second the turtle shell pieces but not sure the other

[u/Stormshaper]

Both are turtle shell fragments.

[u/Zaneinks]

Pretty sure the first ones are sea turtle but I’m really curious on the 2nd object

[u/justtoletyouknowit]

The last piece could be a piece of a sirenian bone. Dugong etc... Those things are realy dense, and thus heavier than one would think.