恐龍卡第 0567 張，共 2 027 張

Efraasia

名字的意思： “named after Eberhard Fraas, a German paleontologist”1

吃：植物長脖子恐龍三疊紀晚期

Efraasia was a long-necked plant-eater that lived in what is now Germany about 210 million years ago. It was a medium-sized dinosaur, about 6 to 7 metres long, and could walk on two or four legs. Its name honors the scientist Eberhard Fraas, who collected the first fossils.1

生存年代

227 到 206 百萬年前3

三疊紀晚期

化石發現地

Germany, in the Löwenstein Formation of Baden-Württemberg1 3

長度

6 到 7 m (20 到 23 ft)1

高度

1.9 m (6.2 ft)

估計值

最高速度

時速約 29 公里（18 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

跟 7 隻狗從鼻子接到尾巴一樣長跟 39 根香蕉頭尾相接一樣長能在 12 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Efraasia 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)

Efraasia 時速約 29 公里 (18 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

Efraasia was once thought to be a small dinosaur only 2 to 3 metres long, but scientists later realized those fossils were from juveniles. Adults grew to about 6.5 metres.1

Its fossils were first mistaken for three different dinosaur species: Teratosaurus minor, Sellosaurus fraasi, and Paleosaurus diagnosticus. In 2003, scientists combined them into one species: Efraasia minor.1

Efraasia had long fingers and a flexible thumb, which it may have used to grasp food. Its wrists were shaped so it could walk on all fours easily.1

The first Efraasia fossils were discovered by a stonemason named Albert Burrer in a quarry near Pfaffenhofen, Germany, between 1906 and 1914.1

Efraasia is a basal sauropodomorph, meaning it is an early relative of the giant long-necked sauropods like Brachiosaurus and Diplodocus.1

Some scientists think Efraasia was an obligate biped, meaning it could only walk on two legs, because its lower arm could not rotate to point its hands downward.1

Efraasia 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Efraasia 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 Efraasia 最常被問的問題

?What did Efraasia eat?

Efraasia was a herbivore, meaning it ate plants. It thrived on the lush vegetation of its time.1 2

?How big was Efraasia?

Efraasia was a medium sized dinosaur, about 6 to 7 metres long. It weighed between 300 and 600 kilograms.1 2

?When did Efraasia live?

Efraasia lived during the Late Triassic Period, around 210 million years ago. Its fossils were found in Germany.1 3

?Could Efraasia walk on two legs?

Yes, Efraasia was mainly bipedal but could also walk on all fours. Some scientists think it could only walk on two legs because its wrists could not rotate.1 2

迷思破解王

迷思： Efraasia was a meat-eating dinosaur.

真相： Early researchers thought it was a predator, but in 1965 scientists proved it was a plant-eating sauropodomorph.1

給恐龍專家

學名: Efraasia
命名者: Galton 19733
類群: 長脖子恐龍
科 / 演化支: Sauropodomorpha3
分類: Sauropodomorpha3
岩石的年代: 227 到 206 百萬年 (Norian)3
岩層: Löwenstein3
國家: 德國3
化石紀錄: The Paleobiology Database 收錄 5 筆3
發現: The first fossils were found by Albert Burrer in a quarry near Pfaffenhofen, Germany, starting in 1906. They were later studied by Friedrich von Huene and Eberhard Fraas. The genus Efraasia was named by Peter Galton in 1973 in honor of Fraas.1
仍有爭議: Scientists still debate whether Efraasia walked on two legs or four. Some think its wrists allowed it to walk on all fours, while others argue it was an obligate biped.1