恐龍卡第 0793 張，共 2 027 張

Haya

名字的意思： “named after Hayagriva, a Hindu god with a horse head, because its skull is long like a horse's”1

吃：植物有喙的草食恐龍白堊紀晚期

Haya was a small, plant-eating dinosaur that lived in what is now Mongolia. It had a long, horse-like skull and a beak for snipping plants. Some Haya skeletons were found with a pile of stomach stones, which helped it grind up tough leaves.1

生存年代

86 到 72 百萬年前3

白堊紀晚期

化石發現地

Javkhlant Formation and Zos Canyon in the Gobi Desert, Mongolia1

長度

1.5 到 2 m (4.9 到 6.6 ft)1

體重

10 kg 到 20 kg (22 到 44 lb)1

高度

0.5 到 0.6 m (1.6 到 2 ft)1

最高速度

時速約 36 公里（22 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 5 隻家貓一樣重

跟 4 隻家貓從鼻子接到尾巴一樣長跟 11 根香蕉頭尾相接一樣長跟 4 顆西瓜一樣重能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Haya 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)

Haya 時速約 36 公里 (22 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

Haya lived about 85 to 72 million years ago, during the Late Cretaceous period.2

One Haya skeleton, called IGM 100/2015, was found with a big pile of gastroliths, stones that the dinosaur swallowed to help digest plants.1

The name Haya comes from Hayagriva, a Hindu god with a horse head, because Haya's skull is long and horse-like.1

Scientists have found several Haya fossils, including skulls, leg bones, and nearly complete skeletons.1

Haya was a small dinosaur, but its exact size is not known from the fossils found so far.2

Some scientists think Haya was closely related to dinosaurs like Jeholosaurus and Changchunsaurus, while others place it in a different group called Thescelosauridae.1

Haya 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Haya 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: Haya
命名者: Makovicky et al. 20113
類群: 有喙的草食恐龍
科 / 演化支: Thescelosauridae3
分類: Ornithischia3
岩石的年代: 86 到 72 百萬年 (Santonian / Campanian)3
岩層: Javkhlant, Djadokhta3
國家: 蒙古3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Haya was named in 2011 by Peter Makovicky and his team. The first fossils were collected in Mongolia between 2002 and 2007 by the Mongolian Academy of Sciences.1
仍有爭議: Scientists are not sure exactly where Haya belongs on the dinosaur family tree. Some studies put it in Jeholosauridae, others in Thescelosauridae.1