Siamodon is an extinct type of dinosaur that lived during the Early Cretaceous period, around 125 to 113 million years ago.

This dinosaur was discovered in northeastern Thailand in an area called Ban Saphan Hin. Scientists have found several important fossils of Siamodon, including a well-preserved part of its jaw and some teeth.

Siamodon had a unique jaw shape, similar to an isosceles triangle, and this jaw was about 23 centimeters long. It had at least 25 teeth that were narrow and featured a strong ridge down the middle. Some of these teeth also had small bumps along their edges.

Compared to older cousins like Iguanodon, Siamodon had differences in its teeth and jaw structure. Its teeth were narrower with a different ridge pattern. Researchers believe that Siamodon is related to an advanced group of dinosaurs, but not quite as advanced as hadrosaurs, which are often known as “duck-billed” dinosaurs.

The name “Siamodon” comes from “Siam,” which is an old name for Thailand, and “odous,” which means “tooth” in Greek. The species name, Siamodon nimngami, honors a person named Witaya Nimngam who played a role in finding the fossils.

In summary, Siamodon is a unique iguanodontian dinosaur that helps scientists understand the evolution of dinosaurs during the Cretaceous period.