恐龍卡第 0577 張，共 2 027 張

Elemgasem

名字的意思： “Elemgasem refers to a god of the Tehuelche people, and nubilus means cloudy or misty in Latin”1

吃：肉肉食恐龍白堊紀晚期

Elemgasem was a meat-eating dinosaur that lived in what is now Patagonia, Argentina, about 90 million years ago. It was a medium-sized predator with strong legs and a bony skull, and it belonged to the abelisaurid family, which were top hunters in the southern continents.1 2

生存年代

94 到 86 百萬年前3

白堊紀晚期

化石發現地

Portezuelo Formation, Neuquén Province, Patagonia, Argentina2 1

長度

4 到 6 m (13 到 20 ft)1

體重

300 kg 到 500 kg (661 到 1,100 lb)1

高度

1.5 到 2 m (4.9 到 6.6 ft)1

最高速度

時速約 44 公里（27 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 25 隻狗一樣重

跟 6 隻狗從鼻子接到尾巴一樣長跟 33 根香蕉頭尾相接一樣長跟 100 顆西瓜一樣重跟 26 個幼兒園小朋友一樣重跟 16 個小學生一樣重能在 8.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Elemgasem 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)

Elemgasem 時速約 44 公里 (27 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

Elemgasem is the first abelisaurid dinosaur ever found from the Turonian to Coniacian time period, which was a gap in the fossil record for this group.1

The only known skeleton of Elemgasem belonged to a subadult, but it had already reached sexual maturity.1

Elemgasem had a rough, bumpy surface on the side of its fibula (a leg bone) and a deep wall on its calcaneum (a heel bone), which are unique features.1

Its tail vertebrae were shaped a bit differently from those of other abelisaurids, which helped scientists identify it as a new species.1

Elemgasem lived during a time of big changes in South America, including climate shifts and extinctions in the oceans.1

Scientists are not sure exactly where Elemgasem fits in the abelisaurid family tree, but it is closely related to a group called Furileusauria.1

Elemgasem 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Elemgasem 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。

給恐龍專家

學名: Elemgasem
命名者: Baiano et al. 20223
類群: 肉食恐龍
科 / 演化支: Abelisauridae3
分類: Theropoda > Ceratosauria > Abelisauridae3
岩石的年代: 94 到 86 百萬年 (Turonian / Coniacian)3
岩層: Portezuelo3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Elemgasem was named and described in 2022 by a team of paleontologists led by Mattia A. Baiano. The fossils were found in the Portezuelo Formation in Patagonia, Argentina.1 2
仍有爭議: Scientists are still debating exactly how Elemgasem is related to other abelisaurids, because it appears in different positions in the family tree depending on how the data is analyzed.1