“Siamodracon altispinus”
Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.
Dinosaur: "Siamodracon altispinus"

Length*: | 2.2 m | 7.2 ft |
Weight*: | 75 kg | 165 lb |
*The largest known specimen
Period
Epoch: Early Cretaceous
Stage: Berriasian
Years: 145–139.8 Ma
Details
Status: nomen nudum
Author: Ulansky
Year: 2014
Distribution
Area: Asia
Country: Thailand
Region: Kalasin
Formation: Phu Kradung
Sources
Material: Dorsal vertebra.
References: Buffetaut, E., Suteethorn, V, and Tong, H., (2001). The first thyreophoran dinosaur from southeast Asia: a stegosaur vertebra from the Late Jurassic Phu Kradung Formation of Thailand.