Cetacean ear bones (suspected)

This concretion had a very interesting shape and wasn't too large so I decided to bring it back home to practice some acid prepping on it. I was very surprised to see what I suspect is some cetacean ear bones start emerging from the rock! I'm going to carry on working on it to expose the rest of the bones inside, perhaps it has both ear bones in there which would be quite rare!

In the photo, I have an example ear bone on the left for comparison.

Here is a video of me starting to prep it with some manual prep and acid: Prep video

Watch the video of it being found

Age: Miocene