恐龍卡第 1734 張，共 2 027 張

Syntarsus

吃：肉肉食恐龍三疊紀晚期到侏羅紀早期

Syntarsus was a fast, meat-eating dinosaur that lived about 200 million years ago. It was a relative of Coelophysis and used its sharp teeth and long legs to chase down small prey. Some fossils show that it might have lived in groups.2

生存年代

206 到 184 百萬年前2

三疊紀晚期到侏羅紀早期

化石發現地

Arizona (USA) and South Africa2 2

長度

2.5 到 3 m (8.2 到 9.8 ft)2

體重

10 kg 到 30 kg (22 到 66 lb)2

高度

0.8 到 1 m (2.6 到 3.3 ft)2

最高速度

時速約 42 公里（26 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？

牠有多重？

跟 8 隻家貓一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 6 顆西瓜一樣重能在 8.6 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Syntarsus 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)

Syntarsus 時速約 42 公里 (26 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

Syntarsus had a long, slim body and a tail that helped it keep balance while running fast.2

Fossils of Syntarsus have been found in Arizona in the Kayenta Formation and in South Africa in the Elliot Formation.2 2

The species Syntarsus kayentakatae was named by Timothy Rowe in 1989 from a partial skeleton found in Arizona.2 1

Syntarsus lived during the Early Jurassic, about 199 to 183 million years ago, in what is now the southwestern United States and southern Africa.2

Scientists think Syntarsus was a fast and agile hunter, using its long legs to chase after lizards and small dinosaurs.2

The name Syntarsus was first used by Michael Raath in 1969 for fossils found in Rhodesia (now Zimbabwe).2

Syntarsus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Syntarsus 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: Syntarsus
命名者: Raath 19692
類群: 肉食恐龍
科 / 演化支: Coelophysoidea2
分類: Theropoda > Coelophysoidea2
岩石的年代: 206 到 184 百萬年 (Rhaetian / Pliensbachian)2
岩層: Kayenta, Elliot, Moenave2
國家: 美國, 南非2
化石紀錄: The Paleobiology Database 收錄 11 筆2
發現: The first Syntarsus fossils were found in the Forest Sandstone of Rhodesia (now Zimbabwe) and named by Michael Raath in 1969. Another species, Syntarsus kayentakatae, was named by Timothy Rowe in 1989 from the Kayenta Formation in Arizona.2 2 1
仍有爭議: Scientists still debate whether Syntarsus should be called a separate genus or classified as a type of Coelophysis. Some researchers suggest the name Megapnosaurus instead.2 2