UNITED STATES.- A paleontology team has revealed the number of tyrannosaurs what was in the Land during the nearly two and a half million years that they inhabited what is now North America in the Cretaceous period. In this sense, it was detailed that they were nothing less than 2.5 billion of this kind of dinosaurs, as detailed by the group of specialists.
“The project started as a joke, in a way,” reveals professor at the University of California at Berkeley, United States, Charles Marshall. “When I hold a fossil in my hand, I can’t help but wonder why this same beast was alive millions of years ago, and here I am holding part of its skeleton,” added the specialist.
In the same way, he said that he realized that there was the possibility of calculating the amount of dinosaurs tyrannosaurid theropods that lived on Earth. Thus. Marshall stressed that with data from the scientific literature they were able to determine the age of sexual maturity of the Tyrannosaurus rex or T-Rex, which ranges between 15.5 years; its lifespan was about 20 years and its ecological body mass was about 5.2 tons with a view to reaching 7.
It was also explained, in the study published by the journal Science, that each generation lasted about 19 years and there was one dinosaur for every 100 square kilometers. On the other hand, it is specified that there was a permanent population of 20 thousand specimens during 127 thousand generations, since it survived 2.5 million years. The accounts, then, show 2.5 billion tyrannosaurs.
For now, only the remains of 100 specimens of Tyrannosaurus Rex have been found, finding only one fossilized bone. “In some ways this has been a paleontological exercise on how much we can know and how we do to find out. […] It’s amazing how much we really know about these dinosaurs and, from that, how much more we can calculate, ”said Charles Marshall.