Summary:

- The article discusses the discovery of a new species of dinosaur called Meraxes gigas, a giant carnivorous theropod that lived in what is now Argentina during the Late Cretaceous period, about 90 million years ago.
- Meraxes gigas was a massive predator, measuring up to 9 meters long and weighing an estimated 4 tons, making it one of the largest known carnivorous dinosaurs.
- The discovery of Meraxes gigas provides new insights into the evolution and diversity of the theropod group, as well as the ecosystem dynamics of the Late Cretaceous period in South America.