恐龍卡第 1128 張，共 2 027 張

Malefica

名字的意思： “witch or sorceress”1 2

吃：植物鴨嘴龍類白堊紀晚期

Malefica was a duck-billed dinosaur that lived in what is now Texas, USA, about 83 to 72 million years ago. It is known from just one partial upper jaw bone, but scientists could tell it was a new kind of hadrosaur. Its name means 'witch' because it was found in Bruja Canyon, and 'bruja' is Spanish for witch.3 1 2

生存年代

84 到 72 百萬年前5

白堊紀晚期

化石發現地

Big Bend National Park, Texas, USA1 2

長度

5 m (16 ft)4

高度

2 m (6.6 ft)

估計值

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？

估計值

跟 5 隻狗從鼻子接到尾巴一樣長跟 28 根香蕉頭尾相接一樣長能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Malefica 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)

Malefica 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

Malefica is known from just one partial left maxilla, which is the upper jaw bone. Even though it is fragmentary, scientists could identify it as a new species because the maxilla has many unique features.1 2

Malefica lived during the Campanian age of the Late Cretaceous, about 83 to 72 million years ago.3

Malefica was a non-saurolophid hadrosaurid, meaning it was an early offshoot of the duck-billed dinosaur family that did not belong to the main group of hadrosaurs with solid or hollow crests.1

The fossil of Malefica was originally thought to belong to the dinosaur Kritosaurus, but later study showed it was a different animal.2

Malefica was named in 2023 by paleontologists Albert Prieto-Márquez and Jonathan R. Wagner.3 1

The specific name deckerti honors Frank Deckert, who found the specimen.2

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

?How big was Malefica?

Nobody knows for sure because only a partial upper jaw bone has been found. Scientists cannot estimate its full size from just that bone.2 5

?Is Malefica a dinosaur?

Yes, Malefica is a dinosaur. It is a hadrosaurid, which is a type of duck-billed dinosaur.2 5

?When did Malefica live?

Malefica lived during the Late Cretaceous Period, about 83 to 72 million years ago.2 5

給恐龍專家

學名: Malefica
命名者: Prieto-Márquez and Wagner 20235
類群: 鴨嘴龍類
科 / 演化支: Hadrosauridae5
分類: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae5
岩石的年代: 84 到 72 百萬年 (Campanian)5
岩層: Aguja5
國家: 美國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: The only known fossil of Malefica, a partial left maxilla, was found in Bruja Canyon in Big Bend National Park, Texas. It was first thought to be from the dinosaur Kritosaurus in 2002, but in 2023 scientists Albert Prieto-Márquez and Jonathan R. Wagner named it as a new genus and species, Malefica deckerti.1 2
仍有爭議: Because only a single jaw bone is known, scientists are not sure what the rest of Malefica's body looked like or exactly how big it was.1