Apatosaurus vs Coelophysis

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

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Side-by-Side Comparison

الخاصية Apatosaurus Coelophysis
الاسم العلمي Apatosaurus ajax Coelophysis bauri
التصنيف Sauropoda Theropoda
الحقبة Jurassic Late Triassic Late
النظام الغذائي Herbivore Carnivore
الطول 22.0 m 3.0 m
Height 4.5 m 1.0 m
الوزن 22.7 t 20 kg
سنة الاكتشاف 1877 1889
موقع الاكتشاف Morrison Formation, Colorado, USA Ghost Ranch, New Mexico, USA
سُمي بواسطة Othniel Charles Marsh Edward Drinker Cope
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Size Comparison

Apatosaurus 22.0 m

about as long as 4 cars end-to-end

Coelophysis 3.0 m

about the size of a human adult

Weight Comparison

Apatosaurus 22.7 t

about the weight of 3.8 elephants

Coelophysis 20 kg

lighter than a human adult

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Timeline Comparison

Apatosaurus
161,5 Mya Jurassic Late (Mesozoic) 145,0 Mya
Coelophysis
237,0 Mya Triassic Late (Mesozoic) 201,4 Mya
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Diet Comparison

Apatosaurus

Herbivore

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

Coelophysis

Carnivore

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

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Classification Comparison

Apatosaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Coelophysis

Clade: Saurischia

Group: Theropoda

(Beast feet)

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Did You Know?

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Apatosaurus was about 7.3x longer than Coelophysis.

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Apatosaurus weighed roughly 1135x more than Coelophysis.

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Apatosaurus was a herbivore while Coelophysis was a carnivore.

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Apatosaurus lived during the Jurassic Late while Coelophysis lived during the Triassic Late, separated by roughly 92 million years.

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Apatosaurus was discovered 12 years earlier, in 1877.

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Apatosaurus belonged to Sauropoda while Coelophysis belonged to Theropoda.

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