恐龍卡第 1537 張，共 2 027 張

Rativates

名字的意思： “raft seer”1

Rativates was a fast, ostrich-like dinosaur that lived in what is now Canada. It had long legs for running and a toothless beak, and it could eat both plants and small animals.1 4

生存年代

84 到 72 百萬年前4

白堊紀晚期

化石發現地

Alberta, Canada1 4

長度

3 m (9.8 ft)2

體重

90 kg (198 lb)2

高度

1.5 m (4.9 ft)2

最高速度

時速約 66 公里（41 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 4 隻狗一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 18 顆西瓜一樣重跟 5 個幼兒園小朋友一樣重跟 3 個小學生一樣重能在 5.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Rativates 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)

一匹飛奔的馬 時速約 65 公里 (40 mph)

Rativates 時速約 66 公里 (41 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Rativates was about half the size of the largest individuals of its relative Struthiomimus.1

The name Rativates means 'raft seer', because scientists thought these dinosaurs looked like modern ratites (like ostriches) and seemed to predict their evolution.1

The only known fossil of Rativates was discovered in 1934 by Levi Sternberg, but it was not recognized as a new species until 2016.1

Rativates had a straight edge on its third toe bone, unlike other ornithomimids which had a curved edge.1

The tail vertebrae of Rativates had short, mound-like spines, which is different from many other ornithomimids.1

A thin section of its thigh bone showed that the known Rativates was at least eight years old and not a juvenile.1

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

?How big was Rativates?

About 3.3 metres (11 feet) long, 1.5 metres (5 feet) tall, and weighed around 90 kilograms (200 pounds).3

?Did Rativates have feathers?

Probably yes. While no skin impressions were found for Rativates, its close relative Ornithomimus had a downy covering and may have had true feathers.3

?When did Rativates live?

Rativates lived about 77 to 75 million years ago, during the Late Cretaceous period.1

給恐龍專家

學名: Rativates
命名者: McFeeters et al. 20164
類群: 似鳥龍類
科 / 演化支: Ornithomimidae4
分類: Theropoda > Ornithomimosauria4
岩石的年代: 84 到 72 百萬年 (Campanian)4
岩層: Oldman4
國家: 加拿大4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Rativates was named in 2016 by Bradley McFeeters and colleagues. The only skeleton was found in 1934 by Levi Sternberg in Alberta, Canada, but it took over 80 years for scientists to realize it was a new species.1
仍有爭議: Scientists are still debating exactly how Rativates is related to other ornithomimids like Struthiomimus and Ornithomimus.1