Baryonyx vs Stegosaurus

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

Side-by-Side Comparison

Property Baryonyx Stegosaurus
Scientific Name Baryonyx walkeri Stegosaurus stenops
Classification Spinosauridae Stegosauria
Period Cretaceous Early Jurassic Late
Diet Piscivore Herbivore
Length 7.5 m 9.0 m
Height 2.5 m 4.0 m
Weight 1.7 t 5.0 t
Discovery Year 1983 1877
Discovery Location Surrey, England Morrison, Colorado, USA
Named By Alan Charig & Angela Milner Othniel Charles Marsh

Size Comparison

Baryonyx 7.5 m

roughly the length of a large SUV

Stegosaurus 9.0 m

roughly the length of a large SUV

Weight Comparison

Baryonyx 1.7 t

comparable to 1.7 small cars

Stegosaurus 5.0 t

about the weight of 0.8 elephants

Timeline Comparison

Baryonyx
145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya
Stegosaurus
161.5 Mya Jurassic Late (Mesozoic) 145.0 Mya

Diet Comparison

Baryonyx

Piscivore

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

Stegosaurus

Herbivore

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

Classification Comparison

Baryonyx

Clade: Theropoda

Group: Spinosauridae

(Spine lizards)

Stegosaurus

Clade: Thyreophora

Group: Stegosauria

(Plated dinosaurs)

Did You Know?

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Stegosaurus weighed roughly 3x more than Baryonyx.

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Baryonyx was a piscivore while Stegosaurus was a herbivore.

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Baryonyx lived during the Cretaceous Early while Stegosaurus lived during the Jurassic Late, separated by roughly 61 million years.

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Stegosaurus was discovered 106 years earlier, in 1877.

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Baryonyx belonged to Spinosauridae while Stegosaurus belonged to Stegosauria.

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