What are these?!

[LandSeig]

We find these things everywhere on the Gulf beach we hunt on, they range from 1/2” to 2” across and look like possible fossil worm burrows. Anyone know for sure? They are solid rock and not petrified wood.

 

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[newnan man]

We find them a lot too when we hunt for shells. Some have holes clear through them. I'll try & do some research.

 

[newnan man]

Ok, my fossil buddy thinks they are petrified mangrove roots.

 

[LandSeig]

Ok thanks I have found that some of them have mussel shell fossil inclusions in them. We find them everywhere on the beach and they have that fossil look to them