Basix by Staub Enameled Cast Iron Cookware

I took a walk in the woods today. The winter aconite is already blooming! And I found a cool fossil, but I don't know what it is. Of course the rock the fossils are in weighs about 25 lbs., so I was kind of hoping to identify the fossil before I carried it all the way back to the house (about 1/2 mile.) So far, no luck.