Which were the biggest dinosaurs?

In the Jurassic age, giant plant eaters called sauropods became the largest animals to walk on Earth. One of them, Ultrasauros, may have been up to 30m long and about 18m high, which is as tall as a six storey building!

Is it true? All sauropods were huge and wide.

No. Sauropods were huge, but some were ‘slim’. This helped when they walked through woods looking for food.

Which dinosaurs were the smallest?

Compsognathus was the size of a turkey and weighed about three kilograms. It hunted insects and lizards. Heterodontosaurus and Lesothosaurus, both plant-eating dinosaurs, were just as small.

Amazing! The neck of Mamenchisaurus was 15 metres long, strengthened by a system of spines. It could not have been lifted very high. Mamenchisaurus probably fed on low-growing vegetation.

Which were the heaviest dinosaurs?

Ultrasauros may have weighed as much as 50 tonnes, but scientists have recently found evidence of an even bigger dinosaur in Argentina. The gigantic Argentinosaurus may have weighed as much as 100 tonnes. Most sauropods were smaller, weighing between 30 and 80 tonnes.

Picture Credit : Google