Spinosaurus was a giant carnivorous dinosaur that lived in the Cretaceous period, about 112,000,000 to 93 million years ago. The body length can reach 15 to 20 meters, weighing about 6.4 to 14 tons. The most notable feature is a row of nerve spines up to 2 meters in length on the back. These nerve spines are formed by the extension of the vertebrae and support a structure similar to a sail. The skull is long and narrow, similar to modern crocodiles, with conical teeth, suitable for catching fish and other small animals. The limbs are short and strong, and the tail is flat and wide, suitable for swimming in the water. It is considered a semi-aquatic predator, feeding mainly on fish, but also hunting other small dinosaurs

It is a giant carnivorous dinosaur that lived during the Cretaceous period, approximately 111 million to 95 million years ago. Known for its unique sail like spine and massive body size, it is one of the largest known land carnivores, with a body length of up to 15 to 18 meters and an estimated weight of between 6 to 20 tons. The head is long and narrow, with sharp teeth, suitable for hunting fish and other aquatic animals. Its forelimbs are strong and suitable for swimming in water, while its tail may have a balancing effect. Mainly living near rivers and lakes, it may be a semi aquatic animal that can hunt in water and on land. Fossils were first discovered in Egypt.

It is a dinosaur that lived during the Cretaceous period and belongs to the theropod suborder. Its fossils were first discovered in Brazil. This dinosaur is known for its unique head features, with a prominent depression in the middle of its head resembling a "V" shape, which may have been adapted to its hunting habits. Medium sized, it is a carnivorous dinosaur that feeds on other small animals. Short forelimbs and well-developed hind limbs, suitable for fast running. The discovery of this dinosaur provides valuable information for our understanding of the Cretaceous ecosystem.