恐龍卡第 0093 張，共 2 027 張

Ampelognathus

名字的意思： “Grapevine jaw”1

吃：植物有喙的草食恐龍白堊紀晚期

Ampelognathus was a tiny, plant-eating dinosaur that lived in Texas about 96 million years ago. It was only about as long as a six-foot person and weighed as much as a medium-sized dog. This little dinosaur is known from just a single jawbone found near Grapevine Lake.1

生存年代

100 到 94 百萬年前4

白堊紀晚期

化石發現地

Grapevine Lake emergency spillway, Tarrant County, Texas, USA2

長度

最多 1.8 m (5.9 ft)1

高度

0.46 m (1.5 ft)3

最高速度

時速約 39 公里（24 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？

跟 4 隻家貓從鼻子接到尾巴一樣長跟 10 根香蕉頭尾相接一樣長能在 9.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Ampelognathus 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)

Ampelognathus 時速約 39 公里 (24 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

Ampelognathus is the first small-bodied, plant-eating ornithopod dinosaur ever found in the Lewisville Formation of Texas.2

The only fossil known from Ampelognathus is a two-inch-long piece of its lower left jawbone.1

Its jaw has a twist: the back teeth point upward and inward instead of straight up, which is unique among its relatives.2

When Ampelognathus lived, a shallow sea split North America into two landmasses, and Texas was on the eastern shore with a hot, humid climate.1

The dinosaur was named after Grapevine Lake, where it was found, and honors Murray Cohen, the fossil enthusiast who discovered the jawbone.2

Ampelognathus is only the fourth named dinosaur from the Dallas-Fort Worth area, joining armored Pawpawsaurus and large Protohadros.1

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

?How big was Ampelognathus?

It was small, likely less than 1.8 metres long and weighed no more than a medium sized dog.1

?What did Ampelognathus eat?

It was a plant-eating dinosaur, a herbivore that lived on the ground.4

?When did Ampelognathus live?

It lived about 96 million years ago during the Late Cretaceous period.1

?Where was Ampelognathus found?

Its jawbone was found near Grapevine Lake in Grapevine, Texas, in the Lewisville Formation.1

給恐龍專家

學名: Ampelognathus
命名者: Tykoski et al. 20234
類群: 有喙的草食恐龍
科 / 演化支: Rhabdodontomorpha4
分類: Ornithischia > Ornithopoda > Iguanodontia4
岩石的年代: 100 到 94 百萬年 (Cenomanian)4
岩層: Lewisville4
國家: 美國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: The fossil was found by Murray Cohen, a volunteer fossil enthusiast, in the Grapevine Lake emergency spillway in Texas. It was named and described by paleontologists Ron Tykoski, Dori Contreras, and Christopher Noto in 2023.2
仍有爭議: Scientists are not sure exactly how big Ampelognathus grew, because only a jawbone has been found so far.1