prehistoric figure XL Brontosaurus Go back in time with this tough dinosaur. Brontosaurus was a heavily built quadruped that grew to over twenty meters long and weighed fifteen tons. It had a fairly long but sturdy neck with a small head. With it, it tore off pieces of coniferous trees that were swallowed without chewing and digested in the enormous abdominal cavity. A long, horizontal tail protruded from the back of the torso, which the animal used as a whip to defend itself against predatory dinosaurs such as Allosaurus. Despite its heavy weight, Brontosaurus was adapted to walk on land. Its strong muscles were well supplied with oxygen because its breathing was supported by air sacs. Extensions of these penetrated into the vertebrae, making the skeleton a lot lighter than its gigantic size would suggest. Specifications Gender: junior Color: brown Dimensions: 30.4 x 10.6 cm (LxH) Material: plastic Age: from 3 years