Please help with identification, what have we found?

Found in a pile of sand that had been trucked in from a local commercial sand pit (southeast Brevard County, FL)  and I need help identifying them. These are definitely fossils, I am wondering if they are whale bones… If anyone has some insight to what these may be please leave a comment, I would really appreciate it. They are so beautiful and I am so curious about what they might be.

There are two bones, but I gave a few different views of each.