Spinosaurus is my favourite dinosaur The Spinosaurus lived around 100 million years ago in what is now North Africa.The name. Spinosaurus means ‘spine lizard’.Fossils of the Spinosaurus were first found in Egypt around 1910. The Spinosaurus was larger than the Tyrannosaurus Rex and may have been the largest carnivorous (meat eating) dinosaur ever. Studies estimate that it was around 15 metres in length and weighed anywhere between 7 to 20 tons. The Spinosaurus featured distinctive spines which grew over 1.5 metres long. The Spinosaurus had a long, thin skull. While the Spinosaurus usually walked on two legs, studies suggest that it may have occasionally crouched on all four. Spinosaurus featured in the popular movie Jurassic Park 3.I like this dinosaur because is very cool and strong.