恐龍卡第 0346 張，共 2 027 張

Cardiodon

名字的意思： “heart tooth”1

吃：植物長脖子恐龍侏羅紀中期

Cardiodon was a huge, long-necked plant-eater that lived in what is now England about 167 million years ago. It is one of the very first sauropod dinosaurs ever given a scientific name!1 2

生存年代

168 到 165 百萬年前2

侏羅紀中期

化石發現地

Bradford-on-Avon, Wiltshire, England1 2

最高速度

時速約 15 公里（9 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)

Cardiodon 時速約 15 公里 (9 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

Cardiodon was the first sauropod dinosaur ever given a formal scientific name, though scientists at the time did not yet know it was a sauropod.1

Its name means 'heart tooth' because its tooth was shaped like a heart.1

The only known fossil of Cardiodon is a single tooth, which is now lost.1

The tooth had a short, wide crown with a slightly convex inner side and a shallow groove on the outer side.1

Cardiodon lived during the late Bathonian stage of the Jurassic Period, about 167 million years ago.1 2

Some scientists think Cardiodon might be related to the giant Spanish sauropod Turiasaurus.1

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

?How big was Cardiodon?

Nobody knows for sure. Only a single tooth has been found, so scientists cannot estimate its size.1

?What did Cardiodon eat?

Cardiodon was a herbivore, meaning it ate plants. As a sauropod, it would have been a large, quadrupedal plant-eater.1 2

?Is Cardiodon a dinosaur?

Yes, Cardiodon is a genus of sauropod dinosaur.1 2

?Why is Cardiodon only known from a tooth?

The only fossil ever found of Cardiodon is a single tooth, which is now lost. No other bones have been discovered.1

迷思破解王

迷思： Cardiodon is just a synonym of Cetiosaurus.

真相： Recent studies show Cardiodon is a distinct genus, not the same as Cetiosaurus.1

給恐龍專家

學名: Cardiodon
命名者: Owen 18412
類群: 長脖子恐龍
科 / 演化支: Eusauropoda2
分類: Sauropodomorpha > Sauropoda2
岩石的年代: 168 到 165 百萬年 (Bathonian)2
岩層: Forest Marble2
國家: 英國2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: Richard Owen named Cardiodon in 1841 based on a tooth found near Bradford-on-Avon, England, by naturalist Joseph Chaning Pearce. He added the species name rugulosus in 1844.1 2
仍有爭議: Scientists are not sure exactly how big Cardiodon was, because only a single tooth has been found.1