if other animals have richard bones can they be dislocated
I'm not entirely sure.
I don't think so, because I don't believe they're connected to any other bones by joints.
Instead they're held in place by the organ/tissue around it, like the hyoid bone, which is connected to others by muscle and ligaments.
So, I think the absolute answer to the question is no, it's not possible at all to dislocate a snake, in the strictest sense.
But I can't really find any good X-Rays or CT-scans of the nether regions of snake-boned animals.