恐龍卡第 0888 張，共 2 027 張

Isisaurus

名字的意思： “Indian Statistical Institute lizard”1

吃：植物長脖子恐龍白堊紀晚期

Isisaurus was a big, long-necked dinosaur that lived in what is now India and Pakistan. It had a short neck and long front legs, which made it look different from other long-necked dinosaurs. It munched on leaves from trees and was one of the most complete dinosaurs found in that part of the world.1

生存年代

72 到 66 百萬年前4

白堊紀晚期

化石發現地

India (Lameta Formation) and Pakistan (Pab Formation)1 4

長度

最多 18 m (59 ft)1

體重

最多 15 公噸 (33,100 lb)1

高度

最多 6 m (20 ft)2

最高速度

時速約 13 公里（8 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？

牠有多重？

跟 2.5 頭大象一樣重

跟 4 台汽車排成一排一樣長跟 100 根香蕉頭尾相接一樣長跟 10 台汽車一樣重跟 3000 顆西瓜一樣重跟 19 整班小學生一樣重跟 33 隻北極熊一樣重高到能從 3 樓的窗戶往裡看能在 28 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Isisaurus 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)

Isisaurus 時速約 13 公里 (8 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

Isisaurus had a short, upright neck and long front legs, which was very unusual for a sauropod.1

Its upper arm bone, the humerus, was 148 centimeters (about 4.9 feet) long.1

Scientists found fungus in coprolites (fossil poop) that they think came from Isisaurus. The fungus shows that it ate leaves from trees that were sick with disease.1

Isisaurus is known from many bones, including neck, back, and tail vertebrae, ribs, pelvis, shoulder bones, and a left front leg. No skull or foot bones have been found.1

It lived during the very end of the Cretaceous Period, about 70 to 66 million years ago, alongside meat-eating dinosaurs like Rajasaurus.1 4

The angle between the back of the skull and the neck joint in Isisaurus was 120 degrees, similar to the skulls of Diplodocus and Apatosaurus.1

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

?How big was Isisaurus?

Isisaurus was a medium sized sauropod, with some estimates of its body length up to 18 metres (59 feet) long and weighing 15 metric tons (17 short tons).1

?What did Isisaurus eat?

Isisaurus was herbivorous, eating leaves from trees. Fungus found in its fossilized poop shows it ate leaves from several species of tree.1 3

?When did Isisaurus live?

Isisaurus lived during the Late Cretaceous period, about 70 to 66 million years ago.1 3

?Where was Isisaurus found?

Isisaurus fossils have been found in India and Pakistan, in the Lameta Formation of India and the Pab Formation of Pakistan.1

?Why is it called Isisaurus?

Isisaurus is named after the Indian Statistical Institute (ISI), because its fossils were studied there. The name combines 'ISI' with the Greek word 'saurus' meaning 'lizard'.1 3

?Was Isisaurus bigger than T. rex?

Isisaurus was about 18 metres (59 feet) long, which is longer than a T. rex.1

給恐龍專家

學名: Isisaurus
命名者: Wilson and Upchurch 20034
類群: 長脖子恐龍
科 / 演化支: Saltasauroidea4
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria4
岩石的年代: 72 到 66 百萬年 (Maastrichtian)4
岩層: Lameta, Vitakri4
國家: 印度, 巴基斯坦4
化石紀錄: The Paleobiology Database 收錄 7 筆4
發現: The fossils were first named Titanosaurus colberti by Sohan Lal Jain and Saswati Bandyopadhyay in 1997. In 2003, Wilson and Upchurch gave them their own genus, Isisaurus, named after the Indian Statistical Institute.1
仍有爭議: Scientists are not sure exactly where Isisaurus fits in the titanosaur family tree. Some studies place it close to Rapetosaurus, others near Saltasauridae, and some with Tapuiasaurus.1