Ginsu shark

the ginsu shark or cretoxyrhina mantelli was a prehistoric shark species from the late Cretaceous period. It got it's name from it's blade like teeth that could easily tear through flesh. Cretoxyrhina was very fast and swim at speeds of up to 70 kph. Cretoxyrhina was larger than a great white shark at 8 metres long cretoxyrhina relied on it's vision to hunt for prey like fish, birds, pterosaurs, sea turtles, mosasaurs and even dinosaurs. Cretoxyrhina was a top predator even deadlier than a Plotosaurus, a giant mosasaur.

Trivia

 * The ginsu shark had larger eyes than most sharks for better vision underwater.
 * The ginsu shark has been found in the western interior seaway.
 * The ginsu shark could have taken down washed up dinosaurs.
 * The ginsu shark was more like a thresher shark than a great white.

In the series...
The ginsu shark appeared in the episode prehistoric Los Angeles it was seen fighting off a plotosaurus.