Coelophysis vs Irritator

A detailed side-by-side comparison of Coelophysis and Irritator, covering size, diet, classification, geologic period, and discovery history.

Side-by-Side Comparison

Thuộc tính Coelophysis Irritator
Tên khoa học Coelophysis bauri Irritator challengeri
Phân loại Theropoda Spinosauridae
Kỷ Triassic Late Cretaceous Early
Chế độ ăn Carnivore Piscivore
Chiều dài 3.0 m 8.0 m
Height 1.0 m 2.5 m
Cân nặng 20 kg 1.0 t
Năm khám phá 1889 1996
Địa điểm khám phá Ghost Ranch, New Mexico, USA Santana Formation, Brazil
Được đặt tên bởi Edward Drinker Cope David Martill et al.

Size Comparison

Coelophysis 3.0 m

about the size of a human adult

Irritator 8.0 m

roughly the length of a large SUV

Weight Comparison

Coelophysis 20 kg

lighter than a human adult

Irritator 1.0 t

comparable to 1.0 small cars

Timeline Comparison

Coelophysis
237,0 Mya Triassic Late (Mesozoic) 201,4 Mya
Irritator
145,0 Mya Cretaceous Early (Mesozoic) 100,5 Mya

Diet Comparison

Coelophysis

Carnivore

Coelophysis was a meat-eating predator, hunting other animals for food.

Irritator

Piscivore

Irritator was a fish-eater, specialized in catching aquatic prey.

Classification Comparison

Coelophysis

Clade: Saurischia

Group: Theropoda

(Beast feet)

Irritator

Clade: Theropoda

Group: Spinosauridae

(Spine lizards)

Did You Know?

💡

Irritator was about 2.7x longer than Coelophysis.

💡

Irritator weighed roughly 50x more than Coelophysis.

💡

Coelophysis was a carnivore while Irritator was a piscivore.

💡

Coelophysis lived during the Triassic Late while Irritator lived during the Cretaceous Early, separated by roughly 56 million years.

💡

Coelophysis was discovered 107 years earlier, in 1889.

💡

Coelophysis belonged to Theropoda while Irritator belonged to Spinosauridae.

Compare With Other Dinosaurs

Explore These Dinosaurs

Explore the Natural World

Discover more across the Nature FYI family