恐龍卡第 1351 張，共 2 027 張

Palmula

名字的意思： “blade of an oar”1

吃：肉蛇頸龍類白堊紀晚期嚴格來說不是恐龍

Palmula was a small, fast-swimming marine reptile that lived in the shallow seas of North America about 90 million years ago. It had four flippers shaped like oars and a short neck, making it a speedy hunter of fish and squid.1 2

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

94 到 90 百萬年前2

白堊紀晚期

最高速度

時速約 27 公里（17 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)

Palmula 時速約 27 公里 (17 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

Palmula was a polycotylid plesiosaur, a group of short-necked plesiosaurs that were fast swimmers.1

Its name means 'blade of an oar' because its flipper bones were shaped like square paddles.1

The bones in its flippers were nearly square, unlike other plesiosaurs which had short, wide flipper bones.1

Palmula lived during the early Turonian stage, about 93 to 90 million years ago.2 1

Only one fossil of Palmula has been found, including parts of the skull, backbone, and a complete right flipper.1

Palmula was originally named Palmula, but that name was already used for a different animal, so scientists later changed it to Palmulasaurus.2

Palmula 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Palmula 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。

給恐龍專家

學名: Palmula
命名者: Albright et al. 20072
類群: 蛇頸龍類
科 / 演化支: Polycotylidae2
分類: Plesiosauria > Sauropterygia2
岩石的年代: 94 到 90 百萬年 (Turonian)2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: Palmula was named in 2007 by L. Barry Albright III, David D. Gillette, and Alan L. Titus based on a fossil found in the Tropic Shale of southern Utah.2 1
仍有爭議: Scientists are not sure exactly how big Palmula grew, because only one partial skeleton has been found.1