Fossilized mammal tooth of a Squalodon or shark-toothed dolphin.

A fossilized tooth, possibly a squalodontid or Squalodon sp. from the Bone Valley Member, Peace River Formation in the phosphate mines of Florida, USA. These oddly toothed cetaceans are also known as shark-toothed dolphins. #FossilFriday

#synapsid #mammal #fossil #paleontology #squalodon #cetacean