I have a whale bulla and I am hoping to get some ID help with this. It was labeled as a Sperm Whale ear bone but after searching pretty extensively, it looks more like a Mysticeti whale to me. I am far from an expert though so I thought I would post it here and see if anybody has any thoughts on it. It was a dive find in South Carolina. It is a pretty good sized ear bone I think, about 4.8 inches long.
Any help would be greatly appreciated.