They came to this conclusion after the discovery of a new kind of dinosaur-Zauropods. This found dinosaur is one of the earliest representatives of this species, it lived on our planet about 179 million years ago. The giant called Bagualia alba was the size of a double-decker bus and had a strong skeleton, four powerful legs and a long neck that allowed it to eat leaves from tall trees. This is reported by CNN.
Scientists believe that the giant size of this dinosaur, including its characteristic long neck, is a consequence of global warming caused by volcanic eruptions in the southern hemisphere. According to scientists, the eruptions have affected the landscape, as the number of tall evergreen conifers has increased.
Four-legged trees were one of the few animals that could chew through the hard vegetation, making them the dominant dinosaurs among herbivores. The scientists came to these conclusions by analyzing more than 100 bones found in the desert in Argentina. Thanks to the research, it was possible to find out that the then warm and humid weather, in which mild and lush vegetation thrived, suddenly changed to higher temperatures, hot and dry climate. The flora became less diverse, and coniferous plants prevailed in it.
According to the author of the study Diego Paul, environmental changes could have been caused by the greenhouse effect of CO2 and methane, which increased due to volcanism. Scientists have found traces of eruptions in South America, South Africa and Antarctica.