Allosaurus vs Dracorex

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

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Side-by-Side Comparison

Eigenschaft Allosaurus Dracorex
Wissenschaftlicher Name Allosaurus fragilis Dracorex hogwartsia
Klassifikation Theropoda Pachycephalosauria
Zeitraum Jurassic Late Cretaceous Late
Ernährung Carnivore Herbivore
Länge 9.7 m 3.0 m
Height 3.5 m 1.2 m
Gewicht 2.3 t 200 kg
Entdeckungsjahr 1877 2006
Fundort Garden Park, Colorado, USA Hell Creek Formation, South Dakota, USA
Benannt von Othniel Charles Marsh Robert Bakker et al.
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Size Comparison

Allosaurus 9.7 m

roughly the length of a large SUV

Dracorex 3.0 m

about the size of a human adult

Weight Comparison

Allosaurus 2.3 t

comparable to 2.3 small cars

Dracorex 200 kg

about 3 adult humans

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Timeline Comparison

Allosaurus
161,5 Mya Jurassic Late (Mesozoic) 145,0 Mya
Dracorex
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya
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Diet Comparison

Allosaurus

Carnivore

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

Dracorex

Herbivore

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

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Classification Comparison

Allosaurus

Clade: Saurischia

Group: Theropoda

(Beast feet)

Dracorex

Clade: Ornithischia

Group: Pachycephalosauria

(Thick-headed lizards)

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Did You Know?

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Allosaurus was about 3.2x longer than Dracorex.

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Allosaurus weighed roughly 12x more than Dracorex.

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Allosaurus was a carnivore while Dracorex was a herbivore.

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Allosaurus lived during the Jurassic Late while Dracorex lived during the Cretaceous Late, separated by roughly 44 million years.

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Allosaurus was discovered 129 years earlier, in 1877.

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Allosaurus belonged to Theropoda while Dracorex belonged to Pachycephalosauria.

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