恐龍卡第 0855 張，共 2 027 張

Ichthyornis

名字的意思： “fish bird”1

吃：魚早期鳥類白堊紀晚期

Ichthyornis was a seabird that lived during the time of dinosaurs. It had a beak like a modern gull but also sharp teeth in its jaws. It flew over the huge inland sea that once covered the middle of North America.1 4

生存年代

100 到 72 百萬年前4

白堊紀晚期

化石發現地

Alberta and Saskatchewan in Canada; Alabama, California, Kansas, New Mexico, Texas in the USA; also Mexico and Uzbekistan4 1

長度

0.24 m (0.8 ft)1

翼展

0.43 m (1.4 ft)1

高度

0.2 m (0.7 ft)3

最高速度

時速約 26 公里（16 英里）

飛行, 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？

跟 8 塊積木排成一排一樣長小到能從椅子底下走過去能在 15 秒內飛越一整座足球場

Ichthyornis 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)

Ichthyornis 時速約 26 公里 (16 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

Ichthyornis was one of the first prehistoric birds discovered with teeth, and Charles Darwin said it was important for understanding evolution.1

Its backbone bones were shaped like a fish's, which is why it got the name 'fish bird'.1

The beak of Ichthyornis was made of several separate plates, like an albatross's beak, not a single piece like most modern birds.1

Ichthyornis lived between about 93 and 83.5 million years ago, during the Late Cretaceous Period.1

Over time, Ichthyornis grew larger: older fossils have a wing bone about 58 mm long, while younger ones have a wing bone about 71.5 mm long.1

Its teeth were curved backward and set in a groove, similar to those of marine reptiles like mosasaurs.1

Ichthyornis is one of the closest extinct relatives of modern birds, helping scientists learn how today's birds evolved.1

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

?How big was Ichthyornis?

About 24 centimetres (9.4 inches) long, with a skeletal wingspan of around 43 centimetres (17 inches). That is about the size of a pigeon.1

?Did Ichthyornis have teeth?

Yes, it had sharp, backward-curved teeth in the middle part of its jaws. The tips of its jaws had no teeth and were covered by a beak.1

?Could Ichthyornis fly?

Yes, it was a strong flier. Its wings and breastbone looked very modern, similar to birds that fly well today.1

?What did Ichthyornis eat?

It probably ate fish and other small sea animals, like modern gulls and terns. Its teeth helped it grab slippery prey.2

?When did Ichthyornis live?

It lived during the Late Cretaceous Period, from about 93 million to 83.5 million years ago.1

?Where did Ichthyornis live?

It lived along the coasts of the huge inland sea that covered the middle of North America. Its fossils have been found in Kansas, Texas, Alberta, and other places.1

?Is Ichthyornis a dinosaur?

Yes, birds evolved from dinosaurs, so Ichthyornis is a type of dinosaur called an avialan. But it is not a non-avian dinosaur like T. rex.1

迷思破解王

迷思： Ichthyornis is sometimes thought to be a dinosaur like T. rex.

真相： Ichthyornis is a bird, not a non-avian dinosaur. It belongs to the group Avialae, which includes modern birds and their extinct relatives.1

給恐龍專家

學名: Ichthyornis
命名者: Marsh 18724
類群: 早期鳥類
科 / 演化支: Ichthyornithes4
分類: Theropoda > Avialae4
岩石的年代: 100 到 72 百萬年 (Cenomanian / Campanian)4
岩層: Niobrara, Mooreville Chalk, Belle Fourche4
國家: 美國, 加拿大, 烏茲別克, 墨西哥4
化石紀錄: The Paleobiology Database 收錄 33 筆4
又名: Angelinornis, Colonosaurus, Plegadornis （舊名稱現在也算作同一種動物）4
發現: Ichthyornis was named by American paleontologist Othniel Charles Marsh in 1872. At first, Marsh thought the toothed jaws belonged to a marine reptile, but later in 1873 he realized they were part of the bird.1 2
仍有爭議: Scientists still debate whether the species should be called Ichthyornis dispar or Ichthyornis anceps, because of naming rules.1