恐龍卡第 1376 張，共 2 027 張

Paraplacodus

名字的意思： “near Placodus”1

吃：肉海生爬蟲類三疊紀中期嚴格來說不是恐龍

Paraplacodus was a small marine reptile that lived in the sea during the Middle Triassic, about 247 to 237 million years ago. It looked a bit like a scaly newt and used its special teeth to crunch shellfish on the seabed.2 3

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

247 到 237 百萬年前3

三疊紀中期

化石發現地

Northern Italy and Switzerland, including Monte San Giorgio2 1

長度

1.5 m (4.9 ft)2

最高速度

時速約 10 公里（6 英里）

游泳, 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？

跟 3 隻家貓從鼻子接到尾巴一樣長跟 8 根香蕉頭尾相接一樣長能在 18 秒內游完一座大泳池（50 公尺）

Paraplacodus 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)

Paraplacodus 時速約 10 公里 (6 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 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

Paraplacodus had three pairs of protruding teeth in the top jaw and two rows in the front, perfect for grabbing shellfish.2

Its thick ribs formed a box-like ribcage with an almost square cross-section, helping it stay near the seabed while hunting.2

It belonged to a group called placodonts, and most were either unarmored like a newt or heavily armored like a turtle. Paraplacodus was unarmored.2

Recent research suggests Paraplacodus did not only eat hard-shelled animals, but also small, raspberry-shaped macroalgae.2

The name Paraplacodus means 'near Placodus', because it looked similar to another placodont called Placodus.2

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

?How big was Paraplacodus?

It was a small reptile, measuring about 1.5 metres (4.9 feet) in total body length.2

?What did Paraplacodus eat?

It mostly ate shellfish, using its front teeth to pick them up and back teeth to crush their shells. Recent research also suggests it ate small, raspberry-shaped macroalgae.2

?Was Paraplacodus a dinosaur?

No, it was a marine reptile called a placodont sauropterygian, not a dinosaur.2

給恐龍專家

學名: Paraplacodus
命名者: Peyer 19313
類群: 海生爬蟲類
科 / 演化支: Paraplacodontidae3
分類: Placodontia > Sauropterygia3
岩石的年代: 247 到 237 百萬年 ()3
岩層: Braies, Besano3
國家: 義大利, 瑞士3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Paraplacodus was named in 1931 by Bernhard Peyer, based on fossils found in Northern Italy and Switzerland.2 1
仍有爭議: Scientists still debate whether Paraplacodus ate only shellfish or also plants like algae.2