恐龍卡第 0824 張，共 2 027 張

Huallasaurus

名字的意思： “duck lizard”1

吃：植物鴨嘴龍類白堊紀晚期

Huallasaurus was a duck-billed dinosaur that lived in what is now Patagonia, Argentina. It had a long, flat snout like a duck and walked on two or four legs. This plant-eater was one of the most complete hadrosaurs ever found in South America.2 1

生存年代

72 到 66 百萬年前6

白堊紀晚期

化石發現地

Los Alamitos Formation, Río Negro Province, Patagonia, Argentina1 6

長度

8 到 9 m (26 到 30 ft)2

體重

3.7 公噸 (8,200 lb)3

高度

3.1 m (10 ft)

估計值

最高速度

時速約 23 公里（14 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 2.5 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 50 根香蕉頭尾相接一樣長跟 180 隻狗一樣重跟 740 顆西瓜一樣重跟 5 整班小學生一樣重跟 8 隻北極熊一樣重能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Huallasaurus 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)

Huallasaurus 時速約 23 公里 (14 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

Huallasaurus was first thought to be a species of Kritosaurus, but scientists later gave it its own name in 2022.1

Its name comes from the Mapudungun word 'hualla' meaning duck, because of its duck-like beak.1

Huallasaurus lived about 72 to 66 million years ago, near the end of the Age of Dinosaurs.6

This dinosaur is known from both adult and subadult fossils, including skull and body bones.2

Huallasaurus belonged to a group of South American duck-billed dinosaurs called Austrokritosauria.1

It shared its home with the long-necked sauropod Aeolosaurus rionegrinus.1

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

?How big was Huallasaurus?

It may have reached 8 to 9 metres (about 26 to 30 feet) in total body length.4

?What did Huallasaurus eat?

It was a plant-eater, like all duck-billed dinosaurs.1

?Did Huallasaurus have feathers?

No, Huallasaurus was an ornithischian dinosaur and there is no evidence it had feathers. Its bones show no air sacs, which is different from feathered dinosaurs.5

?When did Huallasaurus live?

It lived during the Late Cretaceous, about 72 to 66 million years ago.1

給恐龍專家

學名: Huallasaurus
命名者: Rozadilla et al. 20216
類群: 鴨嘴龍類
科 / 演化支: Hadrosauridae6
分類: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae6
岩石的年代: 72 到 66 百萬年 (Maastrichtian)6
岩層: Los Alamitos6
國家: 阿根廷6
化石紀錄: The Paleobiology Database 收錄 2 筆6
發現: The first fossils were found in the Los Alamitos Formation of Argentina and named Kritosaurus australis by Bonaparte and colleagues in 1984. In 2022, Rozadilla and colleagues gave it the new genus name Huallasaurus.1 6
仍有爭議: Scientists are still debating exactly how Huallasaurus is related to other South American hadrosaurs and whether it belongs in the group Kritosaurini or Austrokritosauria.2 1