恐龍卡第 0105 張，共 2 027 張

Anchisaurus

名字的意思： “near lizard”1

吃：植物長脖子恐龍侏羅紀早期

Anchisaurus was a small, long-necked dinosaur that lived during the Early Jurassic. It could walk on two legs or all fours and was one of the smallest relatives of the giant sauropods.2

生存年代

201 到 193 百萬年前3

侏羅紀早期

化石發現地

Connecticut and Massachusetts, USA3

長度

2 到 3 m (6.6 到 9.8 ft)2

體重

20 kg 到 30 kg (44 到 66 lb)1

高度

0.5 到 0.8 m (1.6 到 2.6 ft)2

最高速度

時速約 36 公里（22 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 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Anchisaurus 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)

Anchisaurus 時速約 36 公里 (22 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

Anchisaurus is one of the smallest known sauropod relatives, weighing only about as much as a large dog.1

Its fossils were found in the Portland Formation, which is made of sandstone from ancient rivers and lakes.3

Anchisaurus lived between 201 and 193 million years ago, during the Early Jurassic.1

Some scientists think Anchisaurus could walk on two legs or on all fours, depending on what it was doing.2

Anchisaurus was once called Amphisaurus and Megadactylus before getting its current name.1

It is considered a basal sauropod, meaning it is an early ancestor of the huge long-necked dinosaurs like Brachiosaurus.2

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

迷思破解王

迷思： Anchisaurus was a giant dinosaur like other sauropods.

真相： Anchisaurus was actually very small, weighing only about 20 to 30 kilograms, much smaller than later giant sauropods.1

給恐龍專家

學名: Anchisaurus
命名者: Marsh 18853
類群: 長脖子恐龍
科 / 演化支: Massopoda3
分類: Sauropodomorpha3
岩石的年代: 201 到 193 百萬年 (Hettangian / Sinemurian)3
岩層: Portland3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 5 筆3
又名: Amphisaurus, Megadactylus （舊名稱現在也算作同一種動物）3
發現: Anchisaurus was first named by Edward Hitchcock in 1865 as Megadactylus, but that name was already used for another animal. Othniel Charles Marsh renamed it Anchisaurus in 1885.1
仍有爭議: Scientists debate whether Anchisaurus was a true sauropod or a prosauropod, and whether it ate only plants or also some meat.2