恐龍卡第 0288 張，共 2 027 張

Bonitasaura

名字的意思： “Bonita's lizard, named after the fossil quarry called La Bonita”1

吃：植物長脖子恐龍白堊紀晚期

Bonitasaura was a big plant-eating dinosaur with a short neck and a sharp beak at the front of its mouth. It lived in what is now Argentina, about 85 million years ago.1

生存年代

86 到 84 百萬年前5

白堊紀晚期

化石發現地

Río Negro Province, Argentina1 2

長度

10 m (33 ft)1

高度

2.5 m (8.2 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

跟 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Bonitasaura 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)

Bonitasaura 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

Bonitasaura had a sharp, beak-like keratin sheath on its lower jaw, which worked like a guillotine to cut plants.1

Its neck was short compared to other sauropods, and it had strong back vertebrae for muscle attachment, suggesting it used its neck vigorously while feeding.1

Bonitasaura's skull was low and long, similar to diplodocids, and its lower jaw was squared off with comb-like teeth.1

The front limbs were shorter than the hind limbs, unlike most other macronarians.1

Fossils of Bonitasaura show signs of diseases, including a tumour in the thigh bone and an infection in a tail bone.1

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

?How big was Bonitasaura?

Bonitasaura measured about 10 metres (33 feet) in length.1

?Did Bonitasaura have a beak?

Yes, Bonitasaura had a sharp, beak-like keratin sheath on its lower jaw that helped it to cut plants.1 4

?What did Bonitasaura eat?

Bonitasaura was a plant-eater. It used its peg-like front teeth to rake plants into its mouth and its sharp beak to cut them.1

?Where did Bonitasaura live?

Bonitasaura lived in what is now Argentina, in the Río Negro Province of Patagonia.1

迷思破解王

迷思： Some people think Bonitasaura had a long neck like other sauropods.

真相： Bonitasaura actually had a relatively short neck, which is unusual for a sauropod.1

給恐龍專家

學名: Bonitasaura
命名者: Apesteguía 20045
類群: 長脖子恐龍
科 / 演化支: Eutitanosauria5
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria5
岩石的年代: 86 到 84 百萬年 (Santonian)5
岩層: Bajo de la Carpa5
國家: 阿根廷5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Bonitasaura was named by Sebastian Apesteguía in 2004, based on a partial skeleton found in the Bajo de la Carpa Formation in Argentina.1 3
仍有爭議: Scientists still debate exactly where Bonitasaura fits in the titanosaur family tree, with different studies placing it in different groups.2 1