My lab assistant/dog discovered this small rock, about the diameter of a silver dollar, seemingly thinking it was chocolate candy. It has a white mineral structure on top of it resembling lichen, but I can’t be sure. It seems that lichen is not well preserved in the fossil record.
A closeup view of the structure of the material. A biologist thought it might be tube worm fossils.
My lab assistant who found the whatever-it-is fossil.