恐龍卡第 0570 張，共 2 027 張

Ekrixinatosaurus

名字的意思： “explosion-born reptile”1

吃：肉肉食恐龍白堊紀早期

Ekrixinatosaurus was a big, meat-eating dinosaur with a boxy head and strong legs. It lived in what is now Argentina during the Early Cretaceous period. Its fossils were found when workers were building a gas pipeline and used dynamite, which is how it got its name!1

生存年代

113 到 110 百萬年前2

白堊紀早期

化石發現地

Bajo del Añelo, Neuquén Province, Argentina2 1

長度

6.5 到 8 m (21 到 26 ft)1

體重

800 kg (1,800 lb)1

高度

2.4 m (7.9 ft)

估計值

最高速度

時速約 38 公里（24 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 40 隻狗一樣重

跟 8 隻狗從鼻子接到尾巴一樣長跟 44 根香蕉頭尾相接一樣長跟 160 顆西瓜一樣重跟 42 個幼兒園小朋友一樣重跟 25 個小學生一樣重能在 9.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Ekrixinatosaurus 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)

Ekrixinatosaurus 時速約 38 公里 (24 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

Ekrixinatosaurus was an abelisaurid, a family of theropod dinosaurs with short, deep skulls and tiny arms. Its skull was about 83 centimetres long.1

The only known skeleton of Ekrixinatosaurus was found scattered over an area of 15 square metres. It included parts of the skull, backbone, hips, legs and feet.1

Ekrixinatosaurus lived alongside the giant meat-eater Giganotosaurus and the long-necked sauropods Andesaurus and Limaysaurus. Scientists think they may have competed for food.1

The bones of Ekrixinatosaurus were discovered because of a gas pipeline project. Workers used dynamite to blast through the rock, which is why the dinosaur was named 'explosion-born reptile'.1

Ekrixinatosaurus had a boxy skull with a bump above its eye and a jaw that curved upward. Its face bones were covered in small holes and spikes, which may have supported a tough, wrinkly skin.1

Some scientists once thought Ekrixinatosaurus was the largest abelisaurid, bigger than Carnotaurus. But later studies showed that Carnotaurus was actually larger, just with a smaller head.1

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

?How big was Ekrixinatosaurus?

It was about 6.5 to 8 metres long (21 to 26 feet) and weighed around 800 kilograms (1,800 pounds). Some scientists once thought it was bigger, but later studies showed it was smaller than Carnotaurus.1

?What did Ekrixinatosaurus eat?

It was a meat-eater that probably hunted smaller dinosaurs and animals. It lived alongside giant plant-eaters like Andesaurus and may have competed with the huge predator Giganotosaurus for food.1

?When did Ekrixinatosaurus live?

It lived during the Early Cretaceous period, about 111 to 106 million years ago.1

?Where was Ekrixinatosaurus found?

Its fossils were found in Argentina, in a place called the Candeleros Formation. Workers building a gas pipeline blasted the rock with dynamite, which is how the dinosaur got its name 'explosion-born reptile'.1

?Was Ekrixinatosaurus bigger than Carnotaurus?

No, Carnotaurus was actually larger. Some scientists once thought Ekrixinatosaurus was bigger because of its large skull, but comparing the leg bones shows Carnotaurus was the bigger dinosaur.1

?Did Ekrixinatosaurus have feathers?

The sources do not say whether it had feathers. Its face bones had small holes and spikes that may have supported tough, wrinkly skin, but no information about feathers is given.1

給恐龍專家

學名: Ekrixinatosaurus
命名者: Calvo et al. 20042
類群: 肉食恐龍
科 / 演化支: Abelisauridae2
分類: Theropoda > Ceratosauria > Abelisauridae2
岩石的年代: 113 到 110 百萬年 (Albian)2
岩層: Candeleros2
國家: 阿根廷2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: Ekrixinatosaurus was named in 2004 by paleontologists Jorge Calvo, David Rubilar-Rogers and Karen Moreno. The fossils were found in the Candeleros Formation of Argentina during construction of a gas pipeline.1 2
仍有爭議: Scientists are not sure exactly how big Ekrixinatosaurus was. Some think it was 6.5 to 8 metres long, while others estimate it could have been 10 to 11 metres based on its skull size.1