English: Diplodocus sp. - fossil sauropod dinosaur skin from the Jurassic of Montana, USA. (CMC VP 10662, Cincinnati Museum of Natural History and Science, Cincinnati Museum Center, Cincinnati, Ohio, USA)

Sauropod dinosaurs were the largest terrestrial animals ever. They all have the same basic body plan: large body with four walking legs, very long neck & tail, and a small head relative to body size. Sauropods were herbivores, and are often perceived as holding their heads & necks up high to reach vegetation normally out of reach to other organisms. Modern reconstructions of many sauropod species depict them with heads and necks held close to the horizontal, or at low angles above the horizontal.

Classification: Animalia, Chordata, Vertebrata, Dinosauria, Sauropodomorpha, Diplodocidae

Stratigraphy: Morrison Formation, Upper Jurassic

Locality: Mother's Day Site, Carbon County, southern Montana, USA