恐龍卡第 0299 張，共 2 027 張

Brachytrachelopan

名字的意思： “short-necked Pan, after the shepherd god Pan”1

吃：植物長脖子恐龍侏羅紀晚期

Brachytrachelopan was a sauropod dinosaur with a very short neck, unlike most of its long-necked relatives. It lived in what is now Argentina during the Late Jurassic period, about 150 million years ago. This dinosaur was a plant-eater that probably fed on low-growing plants.1 2

生存年代

155 到 145 百萬年前5

侏羅紀晚期

化石發現地

Chubut Province, Argentina1 3

長度

10 到 11 m (33 到 36 ft)1

體重

5 公噸 (11,000 lb)1

高度

2.7 m (8.9 ft)

估計值

最高速度

時速約 19 公里（12 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 3 台汽車一樣重

跟 2.5 台汽車排成一排一樣長跟 61 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1000 顆西瓜一樣重跟 6 整班小學生一樣重跟 11 隻北極熊一樣重能在 19 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Brachytrachelopan 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)

Brachytrachelopan 時速約 19 公里 (12 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

Brachytrachelopan had the shortest neck of any known sauropod, about 40 percent shorter than other dicraeosaurids.1 2

Its neck was so short that it could not bend upward much, so it only ate plants growing near the ground.1

This dinosaur weighed about 5 metric tons, which is as heavy as a large elephant.1

The only known fossil was found by a shepherd named Daniel Mesa while he was looking for lost sheep.1

Brachytrachelopan belonged to a group called dicraeosaurids, which were sauropods with shorter necks than most.1

Scientists think Brachytrachelopan filled the same ecological role as large iguanodontian dinosaurs in North America, which were also low-browsing plant-eaters.1

The fossil bones were found still connected to each other, but much of the skeleton had already been lost to erosion.1

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

?How big was Brachytrachelopan?

It was small for a sauropod, measuring 10 to 11 metres (33 to 36 ft) in length and weighing about 5 metric tons (5.5 short tons).1

?What did Brachytrachelopan eat?

It was a herbivore that ate low-growing plants, probably those growing at heights between about 1 and 2 metres.1

?Why did Brachytrachelopan have a short neck?

Its short neck helped it feed on low plants, unlike most other sauropods that had long necks for reaching high vegetation.1

?Where was Brachytrachelopan found?

It was discovered in the Cañadón Calcáreo Formation in Chubut Province, Argentina, about 25 kilometres (16 mi) north-northeast of Cerro Cóndor.1

?When did Brachytrachelopan live?

It lived during the Late Jurassic Period, about 150 million years ago.4

?Is Brachytrachelopan a dinosaur?

Yes, it is a sauropod dinosaur from the group Diplodocoidea and family Dicraeosauridae.1

給恐龍專家

學名: Brachytrachelopan
命名者: Rauhut et al. 20055
類群: 長脖子恐龍
科 / 演化支: Dicraeosauridae5
分類: Sauropodomorpha > Sauropoda > Diplodocoidea5
岩石的年代: 155 到 145 百萬年 (Kimmeridgian / Tithonian)5
岩層: Cañadón Calcáreo5
國家: 阿根廷5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Brachytrachelopan was discovered by a local shepherd named Daniel Mesa in Chubut Province, Argentina. Scientists Oliver Rauhut and colleagues named it in 2005.1
仍有爭議: Scientists are still debating exactly how Brachytrachelopan and other dicraeosaurids evolved such short necks compared to other sauropods.1 2