恐龍卡第 0138 張，共 2 027 張

Appalachiosaurus

名字的意思： “Appalachian lizard”1

吃：肉暴龍類白堊紀晚期

Appalachiosaurus was a meat-eating dinosaur that lived in eastern North America during the Late Cretaceous. It was a close cousin of the famous Tyrannosaurus rex, but it was smaller and lived earlier. Only a young skeleton has been found, so scientists are still guessing how big the grown-ups were.1

生存年代

86 到 66 百萬年前4

白堊紀晚期

化石發現地

Alabama, South Carolina, North Carolina, and Georgia, USA1 2

長度

6.5 m (21 ft)1

體重

623 kg (1,400 lb)1

最高速度

時速約 40 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

牠有多大？

牠有多長？

牠有多重？

跟 31 隻狗一樣重

跟 6 隻狗從鼻子接到尾巴一樣長跟 36 根香蕉頭尾相接一樣長跟 120 顆西瓜一樣重跟 33 個幼兒園小朋友一樣重跟 19 個小學生一樣重能在 9 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Appalachiosaurus 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)

Appalachiosaurus 時速約 40 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

Appalachiosaurus is the only known tyrannosauroid dinosaur that lived east of the Western Interior Seaway, in a region called Appalachia.1

The only skeleton found is from a juvenile, about 6.5 metres (21 feet) long and weighing 623 kilograms (1,373 pounds). An adult would have been much bigger.1

It had a row of six low crests on top of its snout, similar to the Asian tyrannosaur Alioramus.1

Two vertebrae in its tail were fused together, possibly from an injury that healed.1

The arms of Appalachiosaurus are poorly known, but scientists think they were short with only two fingers, like in larger tyrannosaurs.1

Its fossils were found in the Demopolis Chalk Formation in Alabama, which was once the bottom of a shallow sea.1

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

?How big was Appalachiosaurus?

The only skeleton found is a juvenile about 6.5 metres (21 feet) long and weighing 623 kilograms (1,373 pounds). An adult would have been significantly larger, but scientists do not know exactly how big.1 3

?What did Appalachiosaurus eat?

It was a meat-eating predator that ate other dinosaurs. It had a strong bite but probably didn't crush bones like T. rex, instead it tore flesh from its prey.3

?Did Appalachiosaurus have feathers?

The sources don't say whether Appalachiosaurus had feathers. Many tyrannosauroids are thought to have had some feathers, but no direct evidence has been found for this species.1

?How fast could Appalachiosaurus run?

Scientists estimate it could run at about 13 km/h (8 mph) when chasing prey in forests, but it may have been an ambush predator that waited for prey to come close.3

?Was Appalachiosaurus bigger than T. rex?

No, Appalachiosaurus was much smaller than T. rex. The juvenile was only 6.5 metres long, and even a full-grown adult would have been smaller than T. rex, which could reach over 12 metres.1 3

?When did Appalachiosaurus live?

It lived during the Late Cretaceous period, about 80 to 76 million years ago.3 1

迷思破解王

迷思： Some early reconstructions showed Appalachiosaurus with long arms and three fingers.

真相： No arm bones have actually been found, but scientists now think its arms were short with only two fingers, like other advanced tyrannosaurs.1

給恐龍專家

學名: Appalachiosaurus
命名者: Carr et al. 20054
類群: 暴龍類
科 / 演化支: Tyrannosauroidea4
分類: Theropoda > Tyrannosauroidea4
岩石的年代: 86 到 66 百萬年 (Santonian / Maastrichtian)4
岩層: Blufftown, Demopolis Chalk, Coachman4
國家: 美國4
化石紀錄: The Paleobiology Database 收錄 6 筆4
發現: The first fossil was found by geologist David King in July 1982 in Alabama. It was named Appalachiosaurus montgomeriensis by paleontologists Thomas Carr and Thomas Williamson in 2005.1
仍有爭議: Scientists are not sure how big a full-grown Appalachiosaurus was, because only a juvenile skeleton has been found.1