恐龍卡第 0853 張，共 2 027 張

Iberospinus

名字的意思： “Iberian spine”6

吃：肉棘龍類白堊紀早期

Iberospinus was a meat-eating dinosaur that lived about 125 million years ago. It had a long snout and sharp teeth, and it probably hunted near water. Scientists think it was a medium-sized spinosaur, a group known for eating fish.1 2

生存年代

126 到 121 百萬年前6

白堊紀早期

化石發現地

Portugal, specifically at Praia das Aguncheiras in the Papo Seco Formation.6 2

最高速度

時速約 24 公里（15 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)

Iberospinus 時速約 24 公里 (15 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

Iberospinus had a single hole in its lower jaw, which is unusual for spinosaurs. This helps scientists tell it apart from its relatives.2

Its lower jaw had a straight bottom edge, not upturned like some other spinosaurs. This is one of the features that makes it unique.2

Iberospinus lived in a lagoon environment with some freshwater and marine influences. Fish scales and teeth are common in the same rocks, so it probably hunted in the water.2

The fossils were first thought to belong to Baryonyx, but new bones found in 2020 showed they were a different dinosaur. That's when scientists named Iberospinus.1 2

Iberospinus is closely related to Baryonyx and Suchomimus, but it is not part of the same group. Scientists think it branched off earlier.1 2

The name Iberospinus means 'Iberian spine', referring to the Iberian Peninsula where it was found. The species name natarioi honors Carlos Natário, who discovered the fossil.2

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

?What did Iberospinus eat?

Iberospinus was a meat-eating dinosaur that probably hunted fish and other aquatic animals, using its crocodile-like jaws and constantly replacing teeth.3

?How big was Iberospinus?

Iberospinus was about 8 metres (26 feet) long, based on estimates from the fossil remains.3

?When did Iberospinus live?

Iberospinus lived about 125 million years ago, during the Early Cretaceous period (Barremian age).4

?Where was Iberospinus found?

Iberospinus was found in the Papo Seco Formation of Portugal, specifically at Praia de Aguncheiras (also known as Praia do Guincho) in the municipality of Sesimbra.5

?Could Iberospinus swim?

Scientists think Iberospinus had a possible semi-aquatic lifestyle, based on features in its tail and toe bones, though it lacked the extreme adaptations of some other spinosaurs.4

?Why is it called Iberospinus?

The name Iberospinus means 'Iberian spine', referring to the Iberian Peninsula where it was found and the long neural spines typical of spinosaurids.4

迷思破解王

迷思： Some people think Iberospinus is the same as Baryonyx because the fossils were once assigned to that dinosaur.

真相： Scientists now know Iberospinus is a different genus. It has unique features in its jaw and other bones that separate it from Baryonyx.1 2

給恐龍專家

學名: Iberospinus
命名者: Mateus and Estraviz-López 20226
類群: 棘龍類
科 / 演化支: Spinosauridae6
分類: Theropoda > Spinosauridae6
岩石的年代: 126 到 121 百萬年 (Barremian)6
岩層: Papo Seco6
國家: 葡萄牙6
化石紀錄: The Paleobiology Database 收錄 1 筆6
發現: The first fossils were found by Carlos Natário in Portugal, but they were originally thought to be Baryonyx. After new material was recovered in 2020, scientists Octávio Mateus and Darío Estraviz-López named it Iberospinus natarioi in 2022.2 6
仍有爭議: Scientists are still debating exactly where Iberospinus fits in the spinosaur family tree. Some features suggest it is related to Baryonyx and Suchomimus, but other features point to a different position.1 2