Phuwiangosaurus
| Phuwiangosaurus Temporal range: Early Cretaceous,
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| Femur | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Sauropoda |
| Clade: | †Macronaria |
| Family: | †Euhelopodidae |
| Genus: | †Phuwiangosaurus Martin, Buffetaut and Suteethorn, 1994 |
| Type species | |
| Phuwiangosaurus sirindhornae Martin, Buffetaut and Suteethorn, 1994
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Phuwiangosaurus (meaning "Phu Wiang lizard") is a genus of titanosauriform dinosaur from the Early Cretaceous (Valanginian-Hauterivian) Sao Khua Formation of Thailand. The type species, P. sirindhornae, was described by Martin, Buffetaut, and Suteethorn in 1994; it was named to honour Princess Maha Chakri Sirindhorn of Thailand, who was interested in the geology and palaeontology of Thailand.
It was a mid-sized sauropod, measuring 15–20 m in length.
Phuwiangosaurus was originally assigned to Titanosauria, but more recent studies have placed it in a more basal position within the Titanosauriformes. Phylogenetic analyses presented by D'Emic (2012), Mannion et al. (2013), and Mocho et al. (2014) resolve Phuwiangosaurus within the Euhelopodidae, alongide genera such as Euhelopus and Tangvayosaurus.[1][2][3] Other analyses have failed to find support for such a grouping,[4] including some finding it to be paraphyletic at the base of Somphospondyli.[2][5]
References
- ^ M. D. D'Emic. 2012. The early evolution of titanosauriform sauropod dinosaurs. Zoological Journal of the Linnean Society 166:624-671.
- ^ a b P. D. Mannion, P. Upchurch, R. N. Barnes and O. Mateus. 2013. Osteology of the Late Jurassic Portuguese sauropod dinosaur Lusotitan atalaiensis (Macronaria) and the evolutionary history of basal titanosauriforms. Zoological Journal of the Linnean Society 168:98-206.
- ^ P. Mocho, R. Royo-Torres, and F. Ortega. 2014. Phylogenetic reassessment of Lourinhasaurus alenquerensis, a basal Macronaria (Sauropoda) from the Upper Jurassic of Portugal. Zoological Journal of the Linnean Society 170:875-916.
- ^ M. D. D'Emic. 2013. Revision of the sauropod dinosaurs of the Lower Cretaceous Trinity Group, southern USA, with the description of a new genus. Journal of Systematic Palaeontology 11(6):707-726.
- ^ Zaher, H.; Pol, D.; Carvalho, A.B.; Nascimento, P.M.; Riccomini, C.; Larson, P.; Juarez-Valieri, R.; Pires-Domingues, R.; da Silva Jr, N.J.; de Almeida Campos, D. (2011). "A complete skull of Early Cretaceous sauropod and the evolution of advanced titanosaurians". PLOS One. 6 (2): e16663.
- Martin, V.; E. Buffeataut; V. Suteethorn (1994). "A new genus of sauropod dinosaur from the Sao Khua formation (Late Jurassic or early Cretaceous) of northeastern Thailand". Comptes rendus de l'Académie des Sciences de Paris (319(2)): pp. 1085–1092.
{{cite journal}}:|pages=has extra text (help) - Martin, V.; E. Buffeataut; V. Suteethorn (1993). "Jurassic sauropod dinosaurs of Thailand: a preliminary report". In T. Thanasutipital (ed.). Proceedings of the International Symposium on Biostratigraphy of mainland Southeast Asia. Chiang Mai University. pp. 415–425.
- Martin, V.; E. Buffeataut; V. Suteethorn (1999). "Description of the type and referred material of Phuwiangosaurus sirindhornae Martin, Buffetaut and Suteethorn, 1994, a sauropod from the Lower Cretaceous of Thailand". Oryctos. 2: pp. 39–91.
{{cite journal}}:|pages=has extra text (help)
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