(Tang Vay lizard).
Named By: R. Allain, P. Taquet, B. Battail, J. Dejax, P. Richir, M. Véran, F. Limon-Duparcmeur, R. Vacant, O. Mateus, P. Sayarath, B. Khenthavong & S. Phouyavong - 1999.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Sauropoda, Titanosauria.
Species: T. hoffeti (type).
Size: Roughly estimated to be about 15 meters long.
Known locations: Laos, Savannakhet - Supérior Formation.
Time period: Aptian/Albian of the Cretaceous.
Fossil representation: Partial post cranial remains, including pelvic and limb bones and an almost complete tail.
Tangvayosaurus is a genus of titanosaurid dinosaur that lived in what is now Laos during the early Cretaceous. Named from partial remains, fossils from a species of the Titanosaurus genus, ‘Titanosaurus’ falloti that is known from the same fossil bearing Formation that the Tangvayosaurus holotype fossils are known from, however some paleontologsts have questioned the addition of ‘Titanosaurus’ falloti to Tangvayosaurus. The Tangvayosaurus genus is still regarded as distinct, mainly because of its difference from Phuwiangosaurus that is known from nearby Thailand. A familial relationship between Tangvayosaurus and Hubeisaurus from China has also been proposed.
- Un nouveau genre de dinosaure sauropode de la formation des Grès supérieurs (Aptien-Albien) du Laos. (orignal in French) [A new genus of sauropod dinosaur from the upper sandstone formation (Aptian-Albian) of Laos] - Comptes Rendus de l'Académie des Sciences à Paris, Sciences de la Terre et des Planètes 329 (8): 609–616. - R. Allain, P. Taquet, B. Battail, J. Dejax, P. Richir, M. Véran, F. Limon-Duparcmeur, R. Vacant, O. Mateus, P. Sayarath, B. Khenthavong & S. Phouyavong - 1999.