Name: Phuwiangosaurus ‭(‬Phu Wiang lizard‭)‬.
Phonetic: Fu-we-ang-o-sore-us.
Named By: V.‭ ‬Martin,‭ ‬E.‭ ‬Buffetaut‭ & ‬V.‭ ‬Sweethorn‭ ‬-‭ ‬1994.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropoda,‭ ‬Titanosauria,‭ ‬Nemegtosauridae.
Species: P.‭ ‬sirindhornae‭ (‬type‭)‬.
Diet: Herbivore.
Size: Roughly about‭ ‬12.2‭ ‬meters long.
Known locations: Thailand‭ ‬-‭ ‬Sao Khua Formation.
Time period: Barremian/Aptian of the Cretaceous.
Fossil representation: Holotype based upon partial but articulated remains.‭ ‬A second individual described in‭ ‬2009‭ ‬is preserved at around‭ ‬60%‭ ‬completeness for the post cranial skeleton‭ (‬including pelvis,‭ ‬rear leg bones,‭ ‬ribs and partial and complete vertebrae from the entire spinal column‭)‬,‭ ‬as well as partial skull.

       Phuwiangosaurus was first named as a titanosaurid dinosaur in‭ ‬1994,‭ ‬and was the first named sauropod dinosaur known to have come from Thailand.‭ ‬The name Phuwiangosaurus translates as‭ ‘‬Phu Wiang lizard‭’ ‬and is a reference to the district of Phu Wiang District of Thailand.‭ ‬The species name P.‭ ‬sirindhornae was in honour of Princess Maha Chakri Sirindhorn of Thailand.
       The problem with the first specimen of Phuwiangosaurus was that although it was articulated,‭ ‬it only represented about ten per cent of the animal,‭ ‬something that left a lot of questions about Phuwiangosaurus unanswered.‭ ‬However,‭ ‬2009‭ ‬saw the publication‭ (‬Suteethorn et al‭) ‬of a description of a second specimen of Phuwiangosaurus,‭ ‬and this dramatically improved our understanding of this titanosaurid dinosaur.‭ ‬With most of the vertebral column recovered,‭ ‬even if some vertebrae were only partially preserved,‭ ‬the total length of this second specimen was estimated to be about twelve meters long.‭ ‬Phuwiangosaurus was also confirmed to be similar to Nemegtosaurus from Mongolia,‭ ‬something which has now seen Phuwiangosaurus placed within the Nemegtosauridae family of titanosaurs.‭ ‬Altogether this second specimen had approximately sixty per cent of the total remains preserved,‭ ‬something that marks it as one of the best preserved dinosaurs from Thailand,‭ ‬as well as one of the most complete titanosaurs ever found.‭

Further reading
-‭ ‬Jurassic sauropod dinosaurs of Thailand:‭ ‬a preliminary report.‭ ‬In T.‭ ‬Thanasutipitak‭ (‬ed.‭)‬.‭ ‬Proceedings of the International Symposium on Biostratigraphy of mainland Southeast Asia.‭ ‬Chiang Mai University.‭ ‬2:‭ ‬415-425.‭ ‬-‭ ‬V.‭ ‬Martin,‭ ‬E.‭ ‬Buffetaut‭ & ‬V.‭ ‬Sweethorn‭ ‬-‭ ‬1993.
-‭ ‬A new genus of sauropod dinosaur from the Sao Khua formation‭ (‬Late Jurassic or early Cretaceous‭) ‬of northeastern Thailand.‭ ‬-‭ ‬Comptes Rendus de l‭’ ‬Academie des Science de Paris.‭ ‬319‭(‬2‭)‬:‭ ‬1085-1092.‭ ‬-‭ ‬V.‭ ‬Martin,‭ ‬E.‭ ‬Buffetaut‭ & ‬V.‭ ‬Sweethorn‭ ‬-‭ ‬1994.
-‭ ‬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:‭ ‬39-91.‭ ‬-‭ ‬V.‭ ‬Martin,‭ ‬E.‭ ‬Buffetaut‭ & ‬V.‭ ‬Sweethorn‭ ‬-‭ ‬1999.
- A new skeleton of Phuwiangosaurus sirindhornae‭ (‬Dinosauria,‭ ‬Sauropoda‭) ‬from NE Thailand‭ ‬-‭ ‬Geological Society,‭ ‬London,‭ ‬Special Publications v.‭ ‬315‭; ‬p.‭ ‬189-215‭ ‬doi:10.1144/SP315.14.‭ ‬-‭ ‬S.‭ ‬Suteethorn,‭ ‬J.‭ ‬Le Loeuff,‭ ‬E.‭ ‬Buffetaut,‭ ‬V.‭ ‬Suteethorn,‭ ‬C.‭ ‬Talubmook‭ & ‬C.‭ ‬Chonglakmani‭ ‬-‭ ‬2009.


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