page_title: Nemegtosaurus
section_title: Paleoenvironment
hierarchical_section_title: Nemegtosaurus / Paleoenvironment
caption_attribution_description: Nemegtosaurus mongoliensis.
context_page_description: Nemegtosaurus was a sauropod dinosaur from Late Cretaceous Period of what is now Mongolia. Nemegtosaurus was named after the Nemegt Basin in the Gobi Desert, where the remains — a single skull — were found. The skull resembles diplodocoids in being long and low, with pencil-shaped teeth. However, recent work has shown that Nemegtosaurus is in fact a titanosaur, closely related to animals such as Saltasaurus, Alamosaurus and Rapetosaurus.
context_section_description: Nemegtosaurus is found in the Maastrichtian aged (66-72 Ma) Nemegt Formation, which makes it one of the last sauropods on earth. There, on a lush river delta flowing through the ancient sands of the Gobi Desert, Nemegtosaurus would have coexisted with animals like the ornithomimid Gallimimus, the alvarezsaurid Mononykus, the velociraptorine Adasaurus, and the giant, saber-clawed therizinosaur Therizinosaurus. It also lived alongside the tyrannosaur Tarbosaurus. Its size (estimated at roughly 40 feet long) may have offered an adult some protection against Tarbosaurus, but juveniles would have been vulnerable.
caption: Restoration of the head
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