Haplocanthosaurus

Haplocanthosaurus is a genus of sauropod dinosaur that lived during the Late Jurassic period, around 150 million years ago. It was a large herbivorous dinosaur that likely had a long neck, a small head, and a long, flexible tail. It is known from fossil specimens that have been found in North America, specifically in the western United States

Haplocanthosaurus was a member of the Diplodocidae family, a group of sauropods characterized by their elongated necks and tails and small heads. It is thought to have been a relatively small sauropod, with an estimated length of around 30-40 feet (9-12 meters) and a weight of around 10-20 tons. It may have had a relatively narrow body, with small, spiky osteoderms (bony plates) along its back. It is not well-known compared to some other sauropod dinosaurs, but it is an important part of the fossil record and helps us understand the diversity and evolution of these large herbivorous dinosaurs.