Phuwiangosaurus Facts
Pronunciation: foo-wee-ANG-oh-SORE-us
Name meaning: Phu Wiang Lizard
| Diet | Herbivore |
| Height | 4m |
| Length | 15m |
| Weight | 12 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Sauropod |
| Location | Thailand |
Phuwiangosaurus was a magnificent sauropod dinosaur that roamed the tropical landscapes of what is now Thailand during the Early Cretaceous period, approximately 125 to 121 million years ago. This impressive herbivore lived in a warm, humid environment filled with lush vegetation and ancient river systems that would have provided abundant food sources for such a large plant-eater.
As a sauropod, Phuwiangosaurus possessed the classic long-necked body plan that made these dinosaurs so successful. Standing roughly 4 metres tall at the hip and stretching about 15 metres from nose to tail, it weighed approximately 12 tonnes. Its elongated neck allowed it to reach high into the canopy to browse on conifers, ferns, and cycads that other herbivores couldn't access, whilst its powerful legs supported its massive frame as it moved through the prehistoric forests.
Like other sauropods, Phuwiangosaurus was a dedicated herbivore with teeth designed for stripping vegetation rather than chewing. It would have swallowed plant material whole, relying on gastroliths (stomach stones) and powerful digestive acids to break down tough plant fibres. Its barrel-shaped body housed an enormous digestive system capable of processing vast quantities of plant matter needed to fuel such a large animal.
The discovery of Phuwiangosaurus has provided valuable insights into sauropod diversity in Southeast Asia during the Early Cretaceous, showing that these giants had spread across the globe and adapted to various environments well before the period when sauropods reached their largest sizes in other parts of the world.
What made Phuwiangosaurus distinctive?
Phuwiangosaurus had the typical sauropod body plan with a very long neck, small head, massive barrel-shaped body, and long tapering tail. Its neck vertebrae show distinctive features that help distinguish it from other sauropod species, though its exact relationships within the group remain somewhat uncertain.
Behaviour
Phuwiangosaurus likely lived in herds, moving slowly through the Early Cretaceous forests of Thailand whilst constantly feeding on available vegetation. Like other sauropods, it would have used its long neck to browse at different heights, from ground-level ferns to tall tree canopies, maximising its feeding efficiency in the lush tropical environment.
Discovery
Phuwiangosaurus was first described by Martin, Buffetaut, and Suteethorn in 1994. The original fossils were discovered at Sao Khua Formation, Phu Wiang area, Thailand.
Phuwiangosaurus FAQ
What did Phuwiangosaurus eat?
Phuwiangosaurus was a herbivore that fed exclusively on plants. It used its long neck to reach high vegetation like conifers, ferns, and cycads, stripping leaves and small branches with its simple teeth before swallowing them whole for digestion in its massive gut.
How big was Phuwiangosaurus?
Phuwiangosaurus was approximately 15 metres long, stood about 4 metres tall at the hip, and weighed around 12 tonnes. This made it a medium-sized sauropod, smaller than giants like
Brontosaurus but still an impressively large dinosaur.
When did Phuwiangosaurus live?
Phuwiangosaurus lived during the
Early Cretaceous period, specifically between 125.77 and 121.4 million years ago. This was during the Valanginian to Hauterivian stages, when the climate was much warmer than today.
Where was Phuwiangosaurus found?
Phuwiangosaurus was discovered in the Sao Khua Formation in the Phu Wiang area of northeastern Thailand. This region is now part of Phu Wiang National Park and has become famous for its dinosaur fossils.
How do you pronounce Phuwiangosaurus?
Phuwiangosaurus is pronounced 'foo-wee-ANG-oh-SORE-us'. The first part comes from 'Phu Wiang', the Thai location where it was found, followed by the Greek word 'saurus' meaning lizard.
What does Phuwiangosaurus mean?
Phuwiangosaurus means 'Phu Wiang Lizard', named after the area in Thailand where its fossils were discovered. The species name 'sirindhornae' honours Princess Maha Chakri Sirindhorn of Thailand for her interest in geology and palaeontology.
How fast could Phuwiangosaurus run?
Like most sauropods, Phuwiangosaurus was not built for speed. Its massive size and body structure suggest it moved relatively slowly, probably walking at speeds similar to modern elephants, around 6-8 km/h at most.
What type of dinosaur was Phuwiangosaurus?
Phuwiangosaurus was a sauropod dinosaur, specifically classified in the family Euhelopodidae. Sauropods were the long-necked, plant-eating giants that included some of the largest land animals ever to live on Earth.
Was Phuwiangosaurus related to birds?
As a sauropod, Phuwiangosaurus was not closely related to birds. Birds evolved from theropod dinosaurs, whilst sauropods like Phuwiangosaurus belonged to a different major group called sauropodomorphs. However, they shared common dinosaurian ancestors millions of years earlier.
How many Phuwiangosaurus fossils have been found?
The exact number of Phuwiangosaurus specimens is not widely reported, but the original discovery appears to be based on limited fossil material. Like many sauropod discoveries, it was likely identified from vertebrae and other distinctive bone fragments rather than a complete skeleton.
