Nicknamed "Sabre-tooth Herring" Enchodus would have been  a formidable predator in it's own right in Cretaceous seas.
 
This is a  large vertebra with some really interesting detail to it. 
 
Specimen information
 
Diameter: 2.08 inches, Length:1.78 inches
 
Location: Khourigba, Morocco
 
Age: 70-66 Million years old