This is a lot of three (3) fossil bones that were recovered from Florida's Bone Valley Formation (Peace River, Hardee County). These bones are likely from the Miocene, Pliocene, and/or Pleistocene periods (13,000 to 23 million years old). They have interesting shapes, but are incomplete and I wasn't able to authoritatively ID them. A professional paleontologist looked at the two larger ones and guessed that they might be partial vertebrae. I have no idea what the smaller "ear-shaped" bone is - possibly a whale ear bone (tympanic bulla)?
Refer to the photos. The black centimeter cube is shown for scale and is not included. You get all three of the bones shown.