Coelophysis vs Dilophosaurus

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

Side-by-Side Comparison

الخاصية Coelophysis Dilophosaurus
الاسم العلمي Coelophysis bauri Dilophosaurus wetherilli
التصنيف Theropoda Theropoda
الحقبة Triassic Late Jurassic Early
النظام الغذائي Carnivore Carnivore
الطول 3.0 m 7.0 m
Height 1.0 m 2.0 m
الوزن 20 kg 400 kg
سنة الاكتشاف 1889 1954
موقع الاكتشاف Ghost Ranch, New Mexico, USA Tuba City, Arizona, USA
سُمي بواسطة Edward Drinker Cope Samuel P. Welles

Size Comparison

Coelophysis 3.0 m

about the size of a human adult

Dilophosaurus 7.0 m

roughly the length of a large SUV

Weight Comparison

Coelophysis 20 kg

lighter than a human adult

Dilophosaurus 400 kg

about 6 adult humans

Timeline Comparison

Coelophysis
237,0 Mya Triassic Late (Mesozoic) 201,4 Mya
Dilophosaurus
201,4 Mya Jurassic Early (Mesozoic) 174,7 Mya

Diet Comparison

Coelophysis

Carnivore

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

Dilophosaurus

Carnivore

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

Classification Comparison

Coelophysis

Clade: Saurischia

Group: Theropoda

(Beast feet)

Dilophosaurus

Clade: Saurischia

Group: Theropoda

(Beast feet)

Both dinosaurs share a common ancestor within the Theropoda clade.

الاختلافات الرئيسية

  • Dilophosaurus (7 m, ~400 kg) was much larger than Coelophysis (3 m, ~20 kg).
  • Dilophosaurus had two distinctive parallel bony crests on its skull; Coelophysis had a plain, slender skull.
  • Both lived in the Early Jurassic–Late Triassic of North America and were among the earliest large theropods.
  • Dilophosaurus had a notch in its upper jaw (kinked jaw) of uncertain function; Coelophysis had a uniform, unkinked jaw.
  • Jurassic Park depicted Dilophosaurus as spitting venom — there is no fossil evidence for this ability.

Did You Know?

💡

Dilophosaurus was about 2.3x longer than Coelophysis.

💡

Dilophosaurus weighed roughly 20x more than Coelophysis.

💡

Both Coelophysis and Dilophosaurus were carnivores.

💡

Coelophysis lived during the Triassic Late while Dilophosaurus lived during the Jurassic Early, separated by roughly 0 million years.

💡

Coelophysis was discovered 65 years earlier, in 1889.

💡

Both belong to the Theropoda clade, making them relatively close relatives.

Compare With Other Dinosaurs

Explore These Dinosaurs

Explore the Natural World

Discover more across the Nature FYI family