(CNN) – Millions of millions of Tyrannosaurus rex, known also as T. rex, deambularon by Norteamérica during its fascinating reunion as large depressors, following a team of investigators dedicated to the arduous task of making the calculation.
Paleontologists at the University of California, Berkeley, are proposing to determine the number of T. rex that Vivieron during the Cretaceous period, to say 65 to 98 million years ago. Y sabían que no seria una labor sencilla.
The pistes of the fossils
The fossils have been used for a long time to deepen what we know about extinct creatures like the dinosaurs. However, experts say that a challenge can be used to calculate the remaining population density and abundance.
“Simply have no information to make a calculation,” explains Charles Marshall, director of the Paleontology Museum of the University of California. Marshall was part of the investigation team. “If you find an Easter egg in your garden, can you calculate how many Easter eggs there are?” Unsurprisingly, no one can do that. No other information is required. For example, the density of Pascua’s horses, the zone in which they can be found and during which years they have Pascua’s horses in the gardens ».
«Previously, the investigators were trying to estimate things like the possible tamaño of the tyrannosaurus distribution area. Also its basic energy needs. Because this is a good extension of the previous job. It includes a lot of up-to-date information about the tyrannosaurus, “said Nizar Ibrahim, paleontologist at the University of Portsmouth (United Kingdom) and National Geographic explorer, who took part in the investigation.
“Only we can keep in mind that all these intriguing studies come with a small dose of incoherence. There is much that we do not know about dinosaurs, including the appearance of a Hollywood star like T. rex », Ibrahim added in an electronic message.
Norteamérica tuvo 20.000 T. rex a la vez
Based on the study of the Fossil Register, density dates and climatic model data, the University of California, Berkeley team calculated that there were probably 20,000 T. rex adults, that Vivieron and all North America existed at the time. This is what the investigators of a study published in the magazine explain Science, means that there are 2,500 million millions of vipers and murmurin to the length of the approximately 2.5 million years in which vines live the dinosaurs.
First of all, the team also calculated the longevity of the dinosaur. With the scientific literature and the opinion of the experts, it is estimated that the probable oath of sexual intercourse of a T. rex was 15.5 years ago, and that his life was longer than 20 years. The corporal masses of an adult dinosaur were 5,200 kilograms, and the crime of sexual immorality can make you lose 7,000 kilograms.
From these calculations, the team came to the conclusion that each generation of T. rex lasts 19 years, and that it has a dinosaur per 100 square kilometers.
Study can help to change the cambio of a species
The researchers also determined that it had a population of 20,000 dinosaurs and 127,000 generations of the species, and a total of 2,500 million dinosaurs.
The methods of investigators “appear to be very informative, while showing the actual limits of what can be done with what we now know”, said Jason C. Poole, head of fossil preparation at the Bighorn Basin Paleontological Institute and artist paleontologist, who is not part of the study.
“I am sure that I will open the gates to focus more on the issues of population density and that this means the length of time,” added Poole in an e-mail. “If it really is possible to help with things like the change of a species and the length of time in relation to evolution and the changing ecosystems”, he concluded.
The authors of the study calculate that the population density of the species is equivalent to 3,800 of the carnivorous dinosaurs in an area of the California Tama, but only in one area of the Washington City Tama.
T. fox’s fossils son inusuales
On the other hand, the results also allow the authors of the information to determine that only T. rex’s fossil remains are kept in a ratio of 1 to 80 million.
“The great impact of this study can be on the demonstrators of the iniquities of their families. In the sense that only a small fraction of the individual organisms that exist exist, by not delving into the depth of time, as in what succeeds in a few miles and a million years, “said Poole.
“In a nutshell, there is a paleontological ownership on which we can learn and how we will learn,” said Marshall, associate professor of integrative biology and science of Tierra and planetaries at UC Berkeley, .
“It’s surprising how much we actually know about these dinosaurs and, from there, it’s much that we can calculate. Our T. rex knowledge has multiplied much in the last few decades thanks to more people, more forms of analysis and best ways to integrate the information about the multiple known families », dijo.
More from T. rex
Ibrahim also has other possibilities derived from this study.
“There are many things that we discuss about the physiology, behavior and ecology of the tyrannosaurus diet, but this study offers an interesting point to estimate the abundance and conservation of dinosaurs,” he said.
“I would like to apply it to other known dinosaurs from abundant fossils. Observe a larger game of dinosaurs ––predadors and presas–– allowed us to better compare the animal communities of the era of the dinosaurs with the modern ones ».
“But only we are looking at the surface, and including this intriguing studio, we already have a long truck to record antes that we can apply with more confidence in the dinosaurs’ studio,” he added.
Kristen Rogers, of CNN, contributes to a good report.