Found the old shark with the dinosaur aged 67 million years

Image: Velizar Simeonovski, Field Museum (miniature: Terry Gates, North Carolina State University)

One of the fossil fossils, the famous dinosaur of the Chicago Field Museum. Illinois United States Must be a skeleton of Tyrannosaurus rex, or called Tyrannosaurus rex-T.rex, named "Sue", size 12.3 meters Paleontologists assume that it fell into the South River. Dakota and died when there are 67 million years

But after examining the remaining 2,000 kilograms of heavy stones after Sue's bone cracking found that fossil remains of the shark were buried in this stone Despite the surprise, shark teeth were found near the T. Rex But paleontologists from the University of North Carolina in the United States were able to identify the teeth of ancient sharks and the way they were buried near the remains of T. Rex Su. It may be because of death in the South Dakota River. At that time, sharks were in abundance.

Paleontologists call this type of shark what Galagadon is related to the group of frog sharks found in the Indo-Pacific Sea. What are these sand-sized teeth? If you do not illuminate with a microscope, there will be no way to see Fortunately, paleontologists have found this tooth before passing it. Because all living things in the ecosystem Each plays a role in the entire network to understand the changes that have occurred in the ecosystem during the massive extinction of the Cretaceous.