Futabasaurus is one of the genera of the plesiosaur. Futabasurus is generally defined as the informal name for the Theropoda. Futabasaurus also means Futaba Lizard. Futabasaurus is a carnivore animal. These animals come under the class Reptilia. That is this animal lives by feeding on the flesh of the other animals. From the fossils of Futabasaurus researchers found that the length of these dinosaurs would have been around 7m and it would have weighed around three to four tons.

Futabasaurus is a bipedal meat eater. That is this animal stands and walks on two legs. The hind legs are stronger so that they can with stand the whole weight of the animal. The body is balanced on the hind legs only. Futabasaurus has both the forelegs and hind legs. Forelegs of the Futabasaurus are small in size when compared with that of the hind legs. These are small in size and are generally useful to hold the prey that is captured. That is the Futabasaurus uses the forelimbs to capture and to hold its prey. The hind limbs are designed in such a way that they help for the locomotion and are designed to bare the whole body weight.

Futabasaurus are a type of dinosaurs in the late cretaceous period. The size of the Futabasaurus is large. These animals are huge in size and weight. These are the successful animals in the late cretaceous period. The jaws are designed in such a way to hold the prey. The jaws of Futabasaurus are more powerful. The Futabasaurus has sharp and strong teeth. These teeth of Futabasaurus are structured in such a way to tear the flesh of the animals and to chew its prey. The jaws can with stand comparatively more weight. That is the jaws of Futabasaurus help it to hold its prey in the mouth. The eyes of the Futabasaurusare located on either side of the head and there were long distance between the nostrils and the eye sockets. The thigh bone of this dinosaur was slim with muscle scar.

The tail of the Futabasaurus is stiff pointed. The tail of Futabasaurus helps the animal to balance its weight on the two hind limbs. The head of the Futabasaurus is large with well strong jaws. This large head helps the animal to capture its prey efficiently and to hold its prey. The legs of this dinosaur were long. That is the hind legs are long which make the body to lift up over the surface of the earth. It has short arms which helps the animal in capturing its prey. Futabasaurus fossils were found in the region of Japan . These animals are named by the famous paleontologist Lambert. The forelimb movement in the Futabasaurus is limited. Due to this feature the Futabasaurus have a stronger head. With its head the Futabasaurus is capable of lifting its prey and helps in search and capture of the prey.

Futabasaurus were known to have belonged to Chordata phylum, Animilia kingdom, Sauropterygia superorder and plesiosauria order. It is known to have belonged to Elasmosauridae family.