Hello all,
I'm not even sure if this is a fossil to begin with, as I'm an amateur fossil hunter. I found this piece in a rock shop called 'Prospector's Paradise', near the center of the Keweenaw Peninsula in Michigan. After talking to the shop owner, it sounds like it could have been found in the Northern part of the Keweenaw. It is possible that he did not find the piece himself, and could come from a different location. I apologize in advance, because it is not much to go on, and it's not a big deal if it can't be solved. The reason I thought it might be a fossil is because one side is smooth and rounded (like a ball-joint that might connect the humerus to the scapula), and because the parts that have been chipped off show a spongey interior (like a medullary cavity). It's possible that it's just a strangely shaped rock, but it would be exciting if it were some sort of fossil. Any help or suggestions would be much appreciated!