恐龍卡第 1670 張，共 2 027 張

Sinocyamodus

名字的意思： “Chinese cyamodont, referring to its family Cyamodontidae and its discovery in China”1

吃：魚海生爬蟲類三疊紀晚期嚴格來說不是恐龍

Sinocyamodus was a marine reptile that lived during the Late Triassic, about 232 to 222 million years ago. It looked like a turtle with a flat, bony shell and a beak for crushing shellfish. This placodont was the first of its kind found in the eastern Tethys Ocean, changing what scientists thought about where these reptiles lived.1

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

234 到 227 百萬年前3

三疊紀晚期

化石發現地

Xiaowa Formation, Guizhou, China1 2

最高速度

時速約 11 公里（7 英里）

游泳, 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)

Sinocyamodus 時速約 11 公里 (7 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 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

Sinocyamodus was a placodont, a group of marine reptiles that were not dinosaurs but relatives of modern turtles.1

It was the first placodont discovered in the eastern Tethys Ocean, showing that these reptiles were not only found in the western Tethys as scientists once thought.1

Only one species is known: Sinocyamodus xinpuensis.1

The first adult specimen was reported in 2018, and it looked different from younger fossils, showing that Sinocyamodus changed as it grew.1

Sinocyamodus lived in a marine environment during the Late Triassic, about 232 to 222 million years ago.1 2

Its fossils have been found in the Xiaowa Formation in Guizhou, China.1 2

Sinocyamodus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Sinocyamodus 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。

給恐龍專家

學名: Sinocyamodus
命名者: 不明3
類群: 海生爬蟲類
科 / 演化支: Cyamodontidae3
分類: Placodontia > Sauropterygia3
岩石的年代: 234 到 227 百萬年 (Carnian)3
岩層: Xiaowa3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Sinocyamodus was named by Li Chun in 2000 based on fossils from the Late Triassic of Guizhou, southwest China. It was the first placodont reptile found in the eastern Tethys region.1
仍有爭議: Scientists are still unsure about the exact size and weight of Sinocyamodus, as only a few fossils have been found.1