恐龍卡第 0999 張，共 2 027 張

Kwanasaurus

名字的意思： “eagle lizard, from the Ute word 'kwana' meaning eagle”1

吃：植物有喙的草食恐龍三疊紀晚期

Kwanasaurus was a plant-eating reptile that lived in Colorado during the Late Triassic. It had a deep, strong skull and leaf-shaped teeth perfect for chomping tough plants. It was one of the closest cousins of dinosaurs, but not a true dinosaur itself.1 2

生存年代

227 到 201 百萬年前3

三疊紀晚期

化石發現地

Eagle Basin, Colorado, USA (Chinle Formation)1 3

長度

1.5 到 2.5 m (4.9 到 8.2 ft)1

體重

10 kg 到 30 kg (22 到 66 lb)1

高度

0.5 到 0.8 m (1.6 到 2.6 ft)1

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？

牠有多重？

跟 8 隻家貓一樣重

跟 2.5 隻狗從鼻子接到尾巴一樣長跟 14 根香蕉頭尾相接一樣長跟 6 顆西瓜一樣重能在 9.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Kwanasaurus 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)

Kwanasaurus 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

Kwanasaurus had a very deep and strong upper jaw (maxilla), much thicker than any other silesaurid.1

Its teeth were leaf-shaped with thick ridges on the tongue side, similar to some early armored dinosaurs.1

Kwanasaurus had 12 teeth in its upper jaw and 14 in its lower jaw, and the middle teeth were the biggest.1

It lived about 215 to 207 million years ago, during the Norian stage of the Late Triassic.1

Kwanasaurus was the northernmost silesaurid ever found in North America.1

Its skull bones had ridges and bumps, suggesting it ate tougher plants than its relatives.1

Kwanasaurus was named in 2019 by scientists Jeffrey Martz and Bryan Small, honoring paleontologist Bill Parker.1 2

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

?Was Kwanasaurus a dinosaur?

Yes, Kwanasaurus was a dinosaur. It was a beaked plant eating ornithischian dinosaur.1

?What did Kwanasaurus eat?

Kwanasaurus was a plant-eater. Its short, leaf-shaped teeth with coarse denticles were perfect for chomping tough plants.1

?How big was Kwanasaurus?

Scientists have not found enough bones to know its exact size, but it was a small reptile, probably less than 2 metres long.1

?When did Kwanasaurus live?

Kwanasaurus lived about 215 to 207 million years ago, during the Norian stage of the Late Triassic.1

迷思破解王

迷思： Kwanasaurus is often called a dinosaur.

真相： Kwanasaurus was a silesaurid, a close cousin of dinosaurs but not a true dinosaur. It belongs to the group Dinosauriformes, just outside Dinosauria.1 3

給恐龍專家

學名: Kwanasaurus
命名者: Martz and Small 20193
類群: 有喙的草食恐龍
科 / 演化支: Silesauridae3
分類: Ornithischia3
岩石的年代: 227 到 201 百萬年 (Norian / Rhaetian)3
岩層: Chinle3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 6 筆3
發現: Kwanasaurus was discovered in the Eagle Basin of Colorado and named in 2019 by Jeffrey Martz and Bryan Small. The name comes from the Ute word for eagle, and the species name honors paleontologist Bill Parker.1 2
仍有爭議: Scientists are not sure whether some leg and shoulder bones found nearby belong to Kwanasaurus, because they lack clear silesaurid features.1