Fossil

while I'm walking with my canon EOS 80D taking pictures for my beautiful country I found this fossil so I said it's worth to be shared
To be honest I didn't knew what is it. It is to big for a helix maybe it is a snake fossilized or a poop (kidding)
The one thing I'm sure of is that hundreds of years passed on this thing to became this way
Thanks for your time I hope you like it