Opisthocoelicaudia
Opisthocoelicaudia.
Opisthocoelicaudia is a genus of sauropod dinosaur of the Late Cretaceous discovered in the Nemegt Formation in the Gobi Desert of Mongolia. Named and described by Polish paleontologist Maria Magdalena Borsuk-Białynicka in 1977, the type species is Opisthocoelicaudia skarzynskii....