Sharksonline's Blog


Posted on: March 26, 2010

Above cretoxyrhina

1. Cretoxyrhina is all so known as the Ginsu Shark. The Ginsu shark is the most well understood fossil sharks to date. A few preserved part have revealed a great deal of insight about the physical features and lifestyle of this ancient shark.

2. Cretoxyrhina was a large shark that lived during the Cretaceous period, about 100 to 82 million years ago.

3. The fossil teeth of Cretoxyrhina are up to 7 cm long, curved and smooth-edged, with a thick enamel coating.

4. Cretoxyrhina grew up to 7.5 meters (25 ft) long and was larger than the great white shark.

5.The Ginsu shark was the largest shark in its time and was among the top predators of the seas. Fossil records revealed that it preyed upon a number of marine animals such as, Mosasaurs, Plesiosaurs, Xiphactinus, and protostegid turtles.

6. The specimen from Niobrara Chalk of western Kansas supports the idea that the body of the Ginsu shark looks like the great white shark. The caudal fin morphology of the Ginsu shark was an active shark and capable of fast swimming so the believe.

7. The Ginsu shark lived in Cenomanian–Campanian seas worldwide and including in the Western Interior Seaway of North America.

All of this info is from


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