恐龍卡第 1804 張，共 2 027 張

Tietasaura

名字的意思： “Tieta lizard”1

吃：植物有喙的草食恐龍白堊紀早期

Tietasaura was a small, plant-eating dinosaur that lived in what is now Brazil during the Early Cretaceous period. It is special because it is the first ornithischian dinosaur ever named from Brazil!1

生存年代

137 到 126 百萬年前4

白堊紀早期

化石發現地

Bahia, Brazil1 4

長度

2 到 3.5 m (6.6 到 11 ft)2 3

體重

150 kg (331 lb)3

高度

1.1 m (3.6 ft)

估計值

最高速度

時速約 45 公里（28 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 8 隻狗一樣重

跟 4 隻狗從鼻子接到尾巴一樣長跟 19 根香蕉頭尾相接一樣長跟 30 顆西瓜一樣重跟 8 個幼兒園小朋友一樣重跟 5 個小學生一樣重能在 8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Tietasaura 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)

Tietasaura 時速約 45 公里 (28 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

Tietasaura is known from just one fossil: the lower end of a left thigh bone (femur).1

The fossil was discovered in 1906 during expeditions by London's Natural History Museum to South America.1

For many years, scientists thought the bone belonged to a crocodile-like reptile called Hyposaurus or Sarcosuchus.1

Tietasaura lived between about 137 and 126 million years ago, during the Valanginian to Hauterivian ages of the Early Cretaceous.4

It was named in 2024, making it a very recently discovered dinosaur.1

The name Tietasaura comes from 'Tieta', the main character of a Brazilian novel, and 'saura', meaning lizard.1

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

?How big was Tietasaura?

About 2 metres (6.6 feet) long. It was a small dinosaur, about the size of a bicycle.2

?What did Tietasaura eat?

Plants. It was an herbivore, meaning it ate leaves and other vegetation.4

?When was Tietasaura discovered?

The fossil was found in 2019, but it was not named as a new dinosaur until 2024.1

給恐龍專家

學名: Tietasaura
命名者: Bandeira et al. 20244
類群: 有喙的草食恐龍
科 / 演化支: Elasmaria4
分類: Ornithischia > Ornithopoda > Iguanodontia4
岩石的年代: 137 到 126 百萬年 (Valanginian / Hauterivian)4
岩層: Marfim4
國家: 巴西4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: The only known fossil of Tietasaura was found in 1906 near Salvador, Bahia, Brazil, but it was misidentified as a crocodile for over a century. It was finally named and described as a new dinosaur by Bandeira and colleagues in 2024.1
仍有爭議: Scientists are not sure exactly how big Tietasaura was, because only a piece of its thigh bone has been found.1