Holotype of Tangvayosaurus, Dinosaur Museum, Savannakhet, Laos
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
†Sauropodomorpha
Clade:
†Sauropoda
Clade:
†Macronaria
Family:
†Euhelopodidae
Genus:
†Tangvayosaurus Allain et al., 1999
Species:
†T. hoffeti
Binomial name
†Tangvayosaurus hoffeti
Allain et al., 1999
Synonyms
Titanosaurus falloti (?) Hoffet, 1942
Tangvayosaurus (meaning "Tang Vay lizard") is a genus of sauropod dinosaur from the Aptian-Albian age Lower Cretaceous Gres superieurs Formation of Savannakhet Province, Laos. It was a basal somphospondylan, about 15 m long, and is known from the remains of two or three individuals.
^Allain, R.; Xaisanavong, T.; Richir, P.; Khentavong, B. (2012). "The first definitive Asian spinosaurid (Dinosauria: Theropoda) from the early cretaceous of Laos". Naturwissenschaften. 99 (5): 369–377. Bibcode:2012NW.....99..369A. doi:10.1007/s00114-012-0911-7. PMID 22528021. S2CID 253637311.
Tangvayosaurus and Phuwiangosaurus as more basal titanosauriforms. The cladogram below follows this analysis. D'Emic (2012) found that Tangvayosaurus...
Laos, has disputed affinities. It has been considered synonymous with Tangvayosaurus and Huabeisaurus, but the remains are too fragmentary to be sure. "Titanosaurus"...
Phuwiangosaurus within the Euhelopodidae, alongside genera such as Euhelopus and Tangvayosaurus. Other analyses have failed to find support for such a grouping, including...
with a partial hip and a skull including the brain case and dentary Tangvayosaurus hoffeti TV4-1 to TV4-36 Dinosaur Museum, Savannakhet Aptian Grès supérieurs...
titanosaur that was mid-sized by sauropod standards, closely related to Tangvayosaurus. †Hypselosaurus †Hypselosaurus priscus 70 Ma Grès à Reptiles Formation...
discovered tree fossils (Araucarioxylon hoffetti), turtles, and a sauropod, Tangvayosaurus hoffetti. Aptian age findings include a Psittacosaurus. In Pha Lane...
Cretaceous, Cenomanian to Maastrichtian) China May be closely related to Tangvayosaurus Hualianceratops 2015 Shishugou Formation (Late Jurassic, Oxfordian)...
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