Earth changed dramatically, giving birth to a series of super-terrifying 'monsters'

Scientists have explored the imprints of time in stone at the Colorado Plateau and Newark Basin, which was formed during the six-continent period to bind a supercontinent. They suddenly found a sudden change in the Earth atmosphere associated with the birth and increased the constant size of the dinosaurs.

Specifically, within 3 million years, the concentration of oxygen in the air has increased by nearly one third , while the concentration of carbon dioxide (CO ₂ ) has decreased sharply . "Right at the" peak "of oxygen, we see the first dinosaurs appeared in tropical North America" - Professor Morgan Schaller from Renselaer Polytechnic Institute (New York - USA), member of the research team, said. .

The small person with giant Sauropods - (photo: MAINTENANCE OF NATURAL NATURAL HISTORY).

According to the same study, that magical period happened about 215 million years ago. Another member of the team, Professor Mike Benton of the University of Bristol (UK), explains: "The first dinosaurs are quite small, but higher oxygen levels in the atmosphere are often associated with size development trends. bigger".

One of the first great dinosaurs could be Chindesaurus, a tall carnivore about 2 meters long, nearly 1m high. Shortly after it, legendary Sauropods have appeared, which are giant long-necked dinosaurs, the largest animals that ever lived on land.

Accordingly, more ancient traces of about 232 million years ago have recorded smaller dinosaurs in South America. But only when the earth replenishes them with more oxygen, new dinosaurs actually achieve incredible size and attack North America - the fertile ground of paleontology.

Previously, the earth's oxygen concentration in the atmosphere was 15%. In this period it has skyrocketed to 19%. Today, the atmosphere has about 21% oxygen.

The research has just been presented at the Goldschmidt geochemistry conference in Barcelona.