恐龍卡第 0885 張，共 2 027 張

Isasicursor

名字的意思： “Isasi's runner”1

吃：植物有喙的草食恐龍白堊紀晚期

Isasicursor was a fast, plant-eating dinosaur that lived in what is now Argentina. It had a beak and ran on two legs, like a big bird. It shared its home with giant sauropods and was hunted by fierce meat-eaters.1

生存年代

72 到 66 百萬年前3

白堊紀晚期

化石發現地

Santa Cruz Province, Argentina1 2

最高速度

時速約 41 公里（25 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)

Isasicursor 時速約 41 公里 (25 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

Isasicursor is the youngest known ornithopod from the Southern Hemisphere, meaning it lived very late in the Age of Dinosaurs.1

Its fossils were found together with bones of young and old individuals, which scientists think means Isasicursor may have lived in herds.1

The first bone of Isasicursor was discovered by technician Marcelo Pablo Isasi, who the dinosaur is named after.1

Isasicursor had a special pin-and-hole connection between its first and second sacral vertebrae, which is unique among dinosaurs.1

It lived alongside the giant titanosaur Nullotitan, and the two probably ate different plants so they did not compete.1

Isasicursor was probably hunted by the huge megaraptorid Maip and the crocodile-like Kostensuchus.1

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

?How big was Isasicursor?

Scientists are not sure of its exact size because only partial bones have been found, but it was a medium-sized ornithopod, probably around 3 to 4 metres long.1

?What did Isasicursor eat?

Isasicursor was a herbivore, meaning it ate plants. It had a beak for cropping vegetation.1 3

?When did Isasicursor live?

Isasicursor lived during the Late Cretaceous Period, about 72 to 66 million years ago, in the Maastrichtian age.1

?Is Isasicursor a dinosaur?

Yes, Isasicursor is a dinosaur. It is an elasmarian ornithopod, a type of plant-eating dinosaur.1

給恐龍專家

學名: Isasicursor
命名者: Novas et al. 20193
類群: 有喙的草食恐龍
科 / 演化支: Elasmaria3
分類: Ornithischia > Ornithopoda > Iguanodontia3
岩石的年代: 72 到 66 百萬年 (Maastrichtian)3
岩層: Chorrillo3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Isasicursor was named in 2019 by Fernando Novas and colleagues. The first fossils were found in the Chorrillo Formation of Argentina, and the species is called Isasicursor santacrucensis.1 2
仍有爭議: Scientists are not sure exactly where Isasicursor fits in the dinosaur family tree. It is placed in the group Elasmaria, but no detailed analysis has been done yet.1