恐龍卡第 1338 張，共 2 027 張

Oxalaia

名字的意思： “named after Oxalá, a respected African deity brought to Brazil during slavery”1

吃：肉棘龍類白堊紀晚期

Oxalaia was a huge, meat-eating dinosaur with a long snout like a crocodile. It lived in what is now Brazil and was one of the biggest predators of its time.1

生存年代

100 到 94 百萬年前3

白堊紀晚期

化石發現地

Laje do Coringa, Cajual Island, Maranhão State, Brazil3 1

長度

12 到 14 m (39 到 46 ft)1

體重

5 公噸到 7 公噸 (11,000 到 15,400 lb)1

高度

4.7 m (15 ft)

估計值

最高速度

時速約 18 公里（11 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 5 台汽車一樣重

跟 3 台汽車排成一排一樣長跟 78 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1400 顆西瓜一樣重跟 9 整班小學生一樣重跟 16 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 20 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Oxalaia 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)

Oxalaia 時速約 18 公里 (11 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

Oxalaia is the largest meat-eating dinosaur ever found in Brazil.1

Its teeth had no serrations, unlike many other spinosaurids such as Suchomimus.1

Oxalaia had one functional tooth followed by two replacement teeth, a feature not seen in other theropod dinosaurs.1

The front part of its snout was very expanded and rounded, different from Spinosaurus.1

Oxalaia lived about 100 to 94 million years ago during the Late Cretaceous period.3

Its fossils were found on Cajual Island, a place where descendants of escaped slaves (quilombolas) live.1

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

?How big was Oxalaia?

Oxalaia was about 12 to 14 metres long and weighed 5 to 7 tonnes. That makes it the largest meat eating dinosaur found in Brazil.1 2

?What did Oxalaia eat?

Oxalaia was a spinosaurid, so it mostly ate fish, like a crocodile. It may also have eaten small dinosaurs and pterosaurs.2

?When did Oxalaia live?

Oxalaia lived during the Late Cretaceous period, about 100.5 to 93.9 million years ago.2

?Where was Oxalaia found?

Oxalaia's fossils were found on Cajual Island in Maranhão, northeastern Brazil, in the Alcântara Formation.2

?Is Oxalaia a dinosaur?

Yes, Oxalaia is a dinosaur. It is a spinosaurid theropod, which means it was a meat-eating dinosaur.2

?Did Oxalaia have feathers?

Nobody knows for sure. No feathers have been found with Oxalaia fossils, and spinosaurids are not known to have feathers, but some related dinosaurs may have had them.2

?Was Oxalaia bigger than T. rex?

Oxalaia was about 12 to 14 metres long, similar in length to T. rex, but T. rex was heavier, weighing about 8 tonnes compared to Oxalaia's 5 to 7 tonnes.1 2

?Could Oxalaia swim?

It is possible. Spinosaurids like Oxalaia had long snouts and conical teeth like fish-eaters, and some scientists think they could swim, but there is no direct evidence for Oxalaia.2

給恐龍專家

學名: Oxalaia
命名者: Kellner et al. 20113
類群: 棘龍類
科 / 演化支: Spinosauridae3
分類: Theropoda > Spinosauridae3
岩石的年代: 100 到 94 百萬年 (Cenomanian)3
岩層: Alcântara3
國家: 巴西3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Oxalaia was named in 2011 by Alexander Kellner and his team based on a snout and a jaw fragment found at Laje do Coringa in Brazil.3 1
仍有爭議: Scientists are not sure if Oxalaia is a separate species or the same as Spinosaurus, because only a few bones have been found.1