Find shark-eating dinosaurs in Utah

At an icy area in the state of Utah, USA in the early Jurassic period, it was recently discovered a large unknown carnivorous dinosaur, a new shark species, at least three other fish species and 3 new tree species. All these extinct creatures gather around a large lake 200 million years ago, archaeologists said.

Anatomical features and traces related to dinosaurs have shown that it has evolved to eat and catch fish, including sharks and large bone fish, Utah state paleontologist James Kirkland said. know.

Scientists believe that this dinosaur is a relative of the dinosaur chicken dinosaur Dilophosaurus , with a look that makes the animal terrified. They can be nearly 6 meters long, 2 meters tall and weigh nearly 500 kg. The long pointed teeth in the front of the mouth help the animal cling to the fish.

One of the fish discovered in this area, now Lake Dixie, is actually a semionotid - a primitive type of fish that usually has a long, slender body, jaws and scales or bones."Fish in the past were armed more than today," Kirkland explained.

The new fossil found belongs to a species that has relatives of the chicken crested dinosaur Dilophosaurus.(Photo: Discovery)

Meanwhile, the new shark, whose scientific name is Lissodus johnsonorum , is a delicious dinner for other species, because its skeleton is made of cartilage and has no hard bones, while fish have bones. Stiffer is much more common in this lake and has 10 times the number of sharks.

T. An