 Also in China, the basal eusauropod "Nebulasaurus taito" was found to be a sister taxon to "Spinophorosaurus", and more derived than Mamenchisauridae, but less derived than "Patagosaurus", and the genus "Shunosaurus" is likely one of the most basal eusauropods.The genus "Barapasaurus" has been found in India, and may represent a cetiosaurid, a basal eusauropod, or a genus outside Eusauropoda.The data around sauropods evolution, as Novas points out, is largely based on a few formations mostly in the Northern Hemisphere.