恐龍卡第 1761 張，共 2 027 張

Tawa

名字的意思： “Hopi word for the Puebloan sun god”1

吃：肉最早的恐龍三疊紀晚期

Tawa was a small, fast dinosaur that lived about 215 million years ago in what is now New Mexico. It had a slender body and a kink in its upper jaw, and it may have been one of the earliest meat-eating dinosaurs.1

生存年代

227 到 206 百萬年前2

三疊紀晚期

化石發現地

New Mexico, USA1 2

長度

2.5 m (8.2 ft)1

體重

15 kg (33 lb)1

高度

0.67 m (2.2 ft)

估計值

最高速度

時速約 41 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？

牠有多高？

估計值

牠有多重？

跟 4 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 120 根香蕉一樣重能在 8.8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Tawa 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)

Tawa 時速約 41 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

Tawa's fossils were discovered at the Hayden Quarry in Ghost Ranch, New Mexico, starting in 2004.1

The name Tawa comes from the Hopi word for the sun god, and the species name hallae honors Ruth Hall, founder of the Ghost Ranch Museum of Paleontology.1

Tawa had a kink in its upper jaw, between the maxilla and premaxilla, similar to some other early theropods.1

Scientists think Tawa helps show that the earliest dinosaurs evolved in South America and then spread across the supercontinent Pangaea.1

The holotype specimen of Tawa is a juvenile, with an open braincase and unfused bones.1

An isolated femur suggests that adult Tawa could be at least 30% larger than the juvenile holotype.1

Tawa 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Tawa 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: Tawa
命名者: Nesbitt et al. 20092
類群: 最早的恐龍
科 / 演化支: Saurischia2
岩石的年代: 227 到 206 百萬年 (Norian)2
岩層: Chinle2
國家: 美國2
化石紀錄: The Paleobiology Database 收錄 3 筆2
發現: Tawa was first described in 2009 by a team led by Sterling J. Nesbitt, based on fossils found in New Mexico.1
仍有爭議: Scientists debate whether Tawa is a true theropod or a more basal saurischian, and whether it belongs to the group Coelophysoidea.1