恐龍卡第 1694 張，共 2 027 張

Soumyasaurus

名字的意思： “Soumya's lizard”1

吃：植物有喙的草食恐龍三疊紀晚期

Soumyasaurus was a tiny, plant-eating dinosaur relative that lived in what is now Texas. It was smaller than a cat and had a beak for snipping plants. Scientists only found a piece of its jaw, so it is still a bit of a mystery.1 3

生存年代

227 到 206 百萬年前3

三疊紀晚期

化石發現地

Miller's Ranch Quarry, Cooper Canyon Formation, Texas, USA3 1

長度

最多 0.85 m (2.8 ft)2

體重

最多 1.9 kg (4 lb)2

高度

0.29 m (1 ft)

估計值

最高速度

時速約 22 公里（14 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

牠有多大？

牠有多長？

牠有多高？

估計值

牠有多重？

跟 16 根香蕉一樣重

跟 1.5 隻家貓從鼻子接到尾巴一樣長跟 5 根香蕉頭尾相接一樣長比一隻家貓還輕跟 16 根香蕉一樣重小到能從椅子底下走過去能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Soumyasaurus 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

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)

Soumyasaurus 時速約 22 公里 (14 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

Soumyasaurus is known from only one small, poorly preserved left jawbone that is less than 3 cm long.1

Its name honors Soumya, the son of paleontologist Sankar Chatterjee, who also named Shuvosaurus after his other son.1

The species name 'aenigmaticus' means 'enigma' or 'riddle' in Latin, because the fossil is so hard to study.1

Soumyasaurus had teeth that were fused to its jaw bone by a rim of fibrous bone, a trait shared with other silesaurids.1

Unlike many other silesaurids, Soumyasaurus had smooth, conical teeth instead of leaf-shaped ones.1

The tip of its jaw is missing, so scientists do not know if it had a beak like other silesaurids.1

Soumyasaurus lived about 220 million years ago during the Late Triassic period.1

Soumyasaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Soumyasaurus 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: Soumyasaurus
命名者: Sarigul et al. 20183
類群: 有喙的草食恐龍
科 / 演化支: Silesauridae3
分類: Ornithischia3
岩石的年代: 227 到 206 百萬年 (Norian)3
岩層: Cooper Canyon3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Soumyasaurus was named in 2018 by paleontologists Volkan Sarıgül, Federico Agnolín, and Sankar Chatterjee based on a jawbone found in the Post Quarry of Texas.1 3
仍有爭議: Scientists are not sure whether Soumyasaurus was a true dinosaur or a close dinosaur relative, because its fossils are so incomplete.1