Cow/bison there are differences but they are too subtle for me. Maybe where you found it could help, plucked from the grass in a pasture probably cow, pulled out of the dirt low in a creek bank could be bison
i have found almost exact same thing. I took mine to a professor at a local college and he said it was a prehistoric ungulate tooth..so i kept them lol
If I’m not mistaken ungulate covers cows horses and camels, while he wasn’t wrong he wasn’t sticking his neck out on a more specific I’d haha but I can’t blame him you never know how that can come back at you
If I’m not mistaken ungulate covers cows horses and camels, while he wasn’t wrong he wasn’t sticking his neck out on a more specific I’d haha but I can’t blame him you never know how that can come back at you