Cretoxyrhina is an extinct genus of large shark that lived in the Western Interior Sea the late Cretaceous period.
The mural of a Cretoxyrhina along with other marine reptiles are seen in marine facility.
The Mosasaurus in Jurassic World (park) eating sharks may be due to her ancestors eating Cretoxyrhina.
Also intrestingly young Mosasaurus's in real life would have been eaten by Cretoxyrhina.
Its very unlikely any were cloned for the original jurassic park but may have been planned.