Dinosaurs Lived In The Mesozoic Era Between 65 & 290 Million Years Ago. Split Into 3 Periods, Which Came Between The Triassic & Cretaceous Periods?

During the Mesozoic Era, which spanned between 65 and 290 million years ago, dinosaurs roamed the Earth and dominated the land. This era is often referred to as the "Age of Reptiles" due to the abundance and diversity of reptilian life forms that thrived during this time. It is divided into three periods – the Jurassic, the Triassic, and the Cretaceous periods – each marked by distinct geological and biological changes.

The Triassic period, which came before the Jurassic period, lasted from approximately 251 to 199 million years ago. This period witnessed the initial diversification of reptiles, including the emergence of the first dinosaurs. The Triassic period also saw the rise of other reptilian groups, such as crocodiles, turtles, and lizards. However, dinosaurs were not yet the dominant terrestrial creatures during this time.

Following the Triassic period came the Jurassic period, which lasted from around 199 to 145 million years ago. This period is perhaps the most famous due to the popularity of movies like Jurassic Park. The Jurassic period witnessed the heyday of dinosaurs, with a remarkable proliferation of species and an increase in their size. Iconic dinosaurs like the Stegosaurus, Allosaurus, and the mighty Tyrannosaurus rex thrived during this time. Additionally, this period saw the emergence of the first birds, which evolved from small, theropod dinosaurs.

The final period of the Mesozoic Era is the Cretaceous period, which spanned from approximately 145 to 65 million years ago. This period marked the end of the dinosaurs, as well as the rise of flowering plants and the emergence of modern mammals. The Cretaceous period is known for its diverse array of dinosaurs, including the enormous herbivorous Argentinosaurus and the ferocious predator known as the Spinosaurus. It is also during this period that the iconic Tyrannosaurus rex evolved and became one of the most fearsome creatures to have ever walked the Earth.

In conclusion, the three periods that came between the Triassic and Cretaceous periods during the Mesozoic Era were the Jurassic, the Triassic, and the Cretaceous periods. Each period witnessed significant developments in the world of dinosaurs and other reptilian life forms, ultimately leading to the dominance and eventual extinction of the dinosaurs at the end of the Cretaceous period.

Sign Up