Coelophysis vs Psittacosaurus

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

Side-by-Side Comparison

الخاصية Coelophysis Psittacosaurus
الاسم العلمي Coelophysis bauri Psittacosaurus mongoliensis
التصنيف Theropoda Ceratopsia
الحقبة Triassic Late Cretaceous Early
النظام الغذائي Carnivore Herbivore
الطول 3.0 m 2.0 m
Height 1.0 m 0.6 m
الوزن 20 kg 20 kg
سنة الاكتشاف 1889 1923
موقع الاكتشاف Ghost Ranch, New Mexico, USA Mongolia
سُمي بواسطة Edward Drinker Cope Henry Fairfield Osborn

Size Comparison

Coelophysis 3.0 m

about the size of a human adult

Psittacosaurus 2.0 m

about the size of a human adult

Weight Comparison

Coelophysis 20 kg

lighter than a human adult

Psittacosaurus 20 kg

lighter than a human adult

Timeline Comparison

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

Diet Comparison

Coelophysis

Carnivore

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

Psittacosaurus

Herbivore

Psittacosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.

Classification Comparison

Coelophysis

Clade: Saurischia

Group: Theropoda

(Beast feet)

Psittacosaurus

Clade: Ornithischia

Group: Ceratopsia

(Horned faces)

Did You Know?

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Coelophysis was a carnivore while Psittacosaurus was a herbivore.

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

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Coelophysis was discovered 34 years earlier, in 1889.

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Coelophysis belonged to Theropoda while Psittacosaurus belonged to Ceratopsia.

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