恐龍卡第 0219 張，共 2 027 張

Bactrosaurus

名字的意思： “club lizard”1 2

吃：植物有喙的草食恐龍白堊紀晚期

Bactrosaurus was an early relative of the duck-billed dinosaurs that lived in Asia. It had a bulky body and walked on four legs but could run on two. Scientists have found bones from at least 12 individuals, from babies to adults.2 1

生存年代

94 到 72 百萬年前3

白堊紀晚期

化石發現地

China, Mongolia, and Kazakhstan3 2

長度

6 到 6.5 m (20 到 21 ft)2 1

體重

1.2 公噸 (2,600 lb)1

高度

1.9 m (6.2 ft)

估計值

最高速度

時速約 31 公里（19 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 60 隻狗一樣重

跟 6 隻狗從鼻子接到尾巴一樣長跟 36 根香蕉頭尾相接一樣長跟 240 顆西瓜一樣重跟 63 個幼兒園小朋友一樣重跟 38 個小學生一樣重跟 2.5 隻北極熊一樣重能在 12 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Bactrosaurus 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)

Bactrosaurus 時速約 31 公里 (19 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

Bactrosaurus is one of the earliest known hadrosauroids, the group that includes duck-billed dinosaurs.1

Its name means 'club lizard' because of the club-shaped spines on its backbone.1 2

Bactrosaurus had three teeth stacked for each visible tooth, a feature seen in more primitive relatives.1

No complete skeleton has been found, but scientists have uncovered parts of the skull, limbs, and pelvis.1

Bactrosaurus lived about 96 to 85 million years ago during the Late Cretaceous.1

Its thigh bone (femur) was about 80 centimeters (2.6 feet) long.1

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

?How big was Bactrosaurus?

About 6 to 6.5 metres (20 to 21 feet) long and weighed about 1.2 metric tons (1.3 short tons).1

?What did Bactrosaurus eat?

Bactrosaurus was a herbivore, so it ate plants.1 2

?Did Bactrosaurus have a crest?

No, Bactrosaurus likely did not have a crest. Its skull is known but the crest is absent, and it is thought to be crestless.1

?When did Bactrosaurus live?

Bactrosaurus lived during the Late Cretaceous, about 96 to 85 million years ago.1 2

迷思破解王

迷思： Bactrosaurus had a crest on its head like some later duck-billed dinosaurs.

真相： Bactrosaurus did not have a crest. Its skull was flat on top.1

給恐龍專家

學名: Bactrosaurus
命名者: Gilmore 19333
類群: 有喙的草食恐龍
科 / 演化支: Hadrosauroidea3
分類: Ornithischia > Ornithopoda > Iguanodontia3
岩石的年代: 94 到 72 百萬年 (Turonian / Campanian)3
岩層: Iren Dabasu, Baynshire, Dabrazhin3
國家: 中國, 蒙古, 哈薩克3
化石紀錄: The Paleobiology Database 收錄 8 筆3
發現: Bactrosaurus was named by Charles W. Gilmore in 1933 based on partial skeletons found in the Gobi Desert of China.1 3
仍有爭議: Scientists are not sure whether Bactrosaurus belongs to the hadrosaurid family or is a more primitive hadrosauroid.1