恐龍卡第 1650 張，共 2 027 張

Siamodon

名字的意思： “Siam tooth”1

吃：植物有喙的草食恐龍白堊紀早期

Siamodon was a plant-eating dinosaur that lived in what is now Thailand. It had a beak and strong cheek teeth to chew tough plants. This dinosaur was about the size of a cow.2 1

生存年代

121 到 113 百萬年前4

白堊紀早期

化石發現地

Ban Saphan Hin, Nakhon Ratchasima Province, northeastern Thailand4

最高速度

時速約 41 公里（25 英里）

跑步, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Siamodon 時速約 41 公里 (25 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Siamodon is known from a nearly complete left upper jaw bone called a maxilla, which held several teeth.4

Scientists also found an isolated tooth and a braincase that they think belong to Siamodon.1

Siamodon lived during the Aptian age of the Early Cretaceous, about 125 to 113 million years ago.2

Siamodon was an advanced iguanodontian, a group of plant-eating dinosaurs that are close relatives of the duck-billed hadrosaurs.1

The fossils of Siamodon were found in the Khok Kruat Formation, a rock layer that was once a river floodplain.4 1

Siamodon was a ground-dwelling dinosaur that walked on four legs but could probably rear up on two legs to reach higher plants.2

Siamodon 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Siamodon 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

你們都在問

關於 Siamodon 最常被問的問題

?What did Siamodon eat?

Siamodon was a plant-eater. It had a beak and strong cheek teeth to chew tough plants.3

?How big was Siamodon?

Siamodon was about the size of a cow. Its upper jaw bone was 230 millimeters long.3

?When did Siamodon live?

Siamodon lived during the Aptian age of the Early Cretaceous, about 125 to 113 million years ago.3

給恐龍專家

學名: Siamodon
命名者: Buffetaut and Suteethorn 20114
類群: 有喙的草食恐龍
科 / 演化支: Hadrosauriformes4
分類: Ornithischia > Ornithopoda > Iguanodontia4
岩石的年代: 121 到 113 百萬年 (Aptian)4
岩層: Khok Kruat4
國家: 泰國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Siamodon was named by French paleontologist Eric Buffetaut and Thai paleontologist Varavudh Suteethorn in 2011. They described it from a well-preserved upper jaw found in northeastern Thailand.4 1
仍有爭議: Scientists are not sure exactly how big Siamodon was, because only a few bones have been found so far.2