In what era did dinosaurs live?

Mesozoic Era.

Dinosaurs mainly inhabited forestlands or open areas on lakeshore plains (or coastal plains). In 1841, British scientist Richard Owen studied several lizard-like bone fossils and believed that they were left by prehistoric animals, and named them dinosaurs, which means "terrible lizards."

Although dinosaur fossils have existed on the earth for tens of millions of years, it was not until the 19th century that people knew that such a strange animal existed on the earth.

Extended information:

The Middle Ages are divided into Triassic, Jurassic and Cretaceous. The representative dinosaurs of the three periods are as follows:

1. Triassic period: the dawn of the dinosaurs, about 250 million to 200 million years ago, lasting about 50 million years.

Representing carnivorous dinosaurs: Coelophysis, Voidosaurus

Representing herbivorous dinosaurs: Plateosaurus

Representing aquatic organisms: Ichthyosaurus, Phantosaurus

2. Jurassic Period: The heyday of dinosaurs, which lasted about 54 million years from 199 million to 145 million years ago.

Representing the carnivorous dinosaurs: Allosaurus, Ceratosaurus, and Barosaurus,

Representing the herbivorous dinosaurs: Brachiosaurus, Diplodocus, Stegosaurus

Representing Aquatic organisms: ichthyosaurs, plesiosaurs

3. Cretaceous period: the decline of dinosaurs, which lasted about 80 million years from about 145 million to 65 million years ago.

Representing carnivorous dinosaurs: Tyrannosaurus, Carcharodontosaurus, Abelisaurus, Spinosaurus, Raptor

Representing herbivorous dinosaurs: Triceratops, Hadrosaurus, Ankylosaurus, Titanosaurus

Represents aquatic creatures: Mosasaurus, Emperorsuchus

Represents flying creatures: Aeolian pterosaur, pterodactyl

Baidu Encyclopedia - Dinosaurs

Baidu Encyclopedia-The Age of Dinosaurs