Can anyone ID this bone for me? We live in a Victorian house and my husband found this while digging up an old poured concrete patio. There are also a few smaller bones that appear to be mixed into or just stuck in the concrete itself.
Thank you for the extra photo, I agree with Heather, it looks like the knee end of a cow femur. There would normally be two curved surfaces which make up the distal end of the femur and in you specimen the bone has split into two leaving just one surface.