Did I bring home poo?

[rachelgardner01]

So I went and had a great day out at Penn Dixie ( Devonian) this weekend.  I brought home a lot of fossils I'll be happy to clean up and put on the shelf. Thankfully,  My level of incompetence is quite apparent to anyone that sees me struggle, young man took pity on me and helped me ( I don't know if I'm allowed to tag him in the post).  After a long day of fossil collecting,  Walking back carrying back a bag that was far too heavy for me,  Sweaty ,tired and dehydrated. I wander from the path to look at something that has caught my eye.  It shines, it calls to me.  What is it?! I pick it up and put it in my pocket.  In my car it goes and to a safe little spot where all my top fossil of the day go.  And there it sits in its place of honor for the 3 hour drive home.  When I get home the nice little Box comes inside where open it to find all my beautiful little trilobites sitting and this, this fossil, rock , poo? Do I pick up and drive home 151 miles with a bit of sun dried poo?

[Rockwood]

Oh d, d, d, dear not p, p, poo ! 

[Mark Kmiecik]

Not poo -- at least I've never seen any that's hollow! And judging by the external striations that would have taken some amazingly complex sphincter control to accomplish. Definitely interesting and will keep some of us guessing for a while. I have no clue.

[Rockwood]

I don't remember seeing ironstone at that site so I'm thinking industrial slag.

[rachelgardner01]

Lets not start under estimating the power of sphincters.  I was cut off in traffic today by one that can't use a turning signal.