I would like to get some old bones identified if its possible. They are shown in the attached photos, and were found buried in clay / gravel at very low tide on the North Kent coast. Fossil collectors occasionally find teeth here from mammoth and woolly rhino, so the bones could be from the Ice Age. The bones were all found together, but do not exactly match. They would have been part of larger bones which have decayed, but as they seem to be from joints they are from the stonger part of the bone and have lasted longer. Any idea what they're from?