Spinosaurus vs Tyrannosaurus Rex

Spinosaurus と Tyrannosaurus Rex のサイズ、食性、分類、地質時代、発見の歴史を詳しく並べて比較します。

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さらに比較

属性 Spinosaurus Tyrannosaurus Rex
学名 Spinosaurus aegyptiacus Tyrannosaurus rex
分類 Spinosauridae Tyrannosauridae
時代 Cretaceous Early Cretaceous Late
食性 Piscivore Carnivore
全長 15.0 m 12.3 m
体重 5.2 m 3.7 m
体重 7.4 t 8.4 t
発見年 1912 1905
発見場所 Bahariya Oasis, Egypt Montana, USA
命名者 Ernst Stromer Henry Fairfield Osborn
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さらに比較

Spinosaurus 15.0 m

about as long as 3 cars end-to-end

Tyrannosaurus Rex 12.3 m

about as long as 2 cars end-to-end

さらに比較

Spinosaurus 7.4 t

about the weight of 1.2 elephants

Tyrannosaurus Rex 8.4 t

about the weight of 1.4 elephants

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さらに比較

Spinosaurus
145.0 百万年前 Cretaceous Early (Mesozoic) 100.5 百万年前
Tyrannosaurus Rex
100.5 百万年前 Cretaceous Late (Mesozoic) 66.0 百万年前
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さらに比較

Spinosaurus

Piscivore

Spinosaurus は水中の獲物を捕らえることに特化した魚食性恐竜でした。

Tyrannosaurus Rex

Carnivore

Tyrannosaurus Rex は他の動物を狩る肉食捕食者でした。

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分類

Spinosaurus

クレード: Theropoda

グループ: Spinosauridae

(棘のトカゲ)

Tyrannosaurus Rex

クレード: Theropoda

グループ: Tyrannosauridae

(暴君のトカゲ)

両恐竜は Theropoda クレード内に共通の祖先を持っています。

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主な相違点

  • Spinosaurus (up to 15 m) was longer than T. rex (up to 12.3 m), making it the largest known predatory dinosaur.
  • T. rex had the most powerful bite force of any land animal (~57,000 N); Spinosaurus had a weaker but longer, crocodile-like jaw suited for catching fish.
  • Spinosaurus was semi-aquatic with dense bones for buoyancy, while T. rex was a terrestrial apex predator.
  • T. rex lived in western North America during the Late Cretaceous; Spinosaurus roamed North Africa in the Early Cretaceous.
  • Spinosaurus had a prominent sail or hump on its back up to 1.8 m tall; T. rex had no such structure.
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ご存知でしたか?

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Spinosaurus was a piscivore while Tyrannosaurus Rex was a carnivore.

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Spinosaurus lived during the Cretaceous Early while Tyrannosaurus Rex lived during the Cretaceous Late, separated by roughly 0 million years.

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Tyrannosaurus Rex was discovered 7 years earlier, in 1905.

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Spinosaurus belonged to Spinosauridae while Tyrannosaurus Rex belonged to Tyrannosauridae.

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