Deinonychus vs Eoraptor

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

{# ═══════════════════════════════════════════════════════════════════════════ Side-by-side comparison table ═══════════════════════════════════════════════════════════════════════════ #}

Side-by-Side Comparison

Property Deinonychus Eoraptor
Scientific Name Deinonychus antirrhopus Eoraptor lunensis
Classification Dromaeosauridae Saurischia
Period Cretaceous Early Triassic Late
Diet Carnivore Omnivore
Length 3.4 m 1.0 m
Height 0.9 m 0.3 m
Weight 73 kg 10 kg
Discovery Year 1969 1993
Discovery Location Montana, USA Ischigualasto Formation, Argentina
Named By John Ostrom Paul Sereno et al.
{# ═══════════════════════════════════════════════════════════════════════════ Visual size comparison ═══════════════════════════════════════════════════════════════════════════ #}

Size Comparison

Deinonychus 3.4 m

about the size of a human adult

Eoraptor 1.0 m

smaller than a human child

Weight Comparison

Deinonychus 73 kg

about 1 adult humans

Eoraptor 10 kg

lighter than a human adult

{# ═══════════════════════════════════════════════════════════════════════════ Timeline comparison ═══════════════════════════════════════════════════════════════════════════ #}

Timeline Comparison

Deinonychus
145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya
Eoraptor
237.0 Mya Triassic Late (Mesozoic) 201.4 Mya
{# ═══════════════════════════════════════════════════════════════════════════ Diet comparison ═══════════════════════════════════════════════════════════════════════════ #}

Diet Comparison

Deinonychus

Carnivore

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

Eoraptor

Omnivore

Eoraptor had an omnivorous diet, consuming both plants and small animals.

{# ═══════════════════════════════════════════════════════════════════════════ Classification comparison ═══════════════════════════════════════════════════════════════════════════ #}

Classification Comparison

Deinonychus

Clade: Theropoda

Group: Dromaeosauridae

(Raptors)

Eoraptor

Group: Saurischia

(Lizard-hipped dinosaurs)

{# ═══════════════════════════════════════════════════════════════════════════ Key differences (from Comparison model) ═══════════════════════════════════════════════════════════════════════════ #} {# ═══════════════════════════════════════════════════════════════════════════ Did You Know? fun facts ═══════════════════════════════════════════════════════════════════════════ #}

Did You Know?

💡

Deinonychus was about 3.4x longer than Eoraptor.

💡

Deinonychus weighed roughly 7x more than Eoraptor.

💡

Deinonychus was a carnivore while Eoraptor was a omnivore.

💡

Deinonychus lived during the Cretaceous Early while Eoraptor lived during the Triassic Late, separated by roughly 136 million years.

💡

Deinonychus was discovered 24 years earlier, in 1969.

💡

Deinonychus belonged to Dromaeosauridae while Eoraptor belonged to Saurischia.

{# ═══════════════════════════════════════════════════════════════════════════ Related comparisons ═══════════════════════════════════════════════════════════════════════════ #}

Compare With Other Dinosaurs

{# ═══════════════════════════════════════════════════════════════════════════ Explore these dinosaurs ═══════════════════════════════════════════════════════════════════════════ #}

Explore These Dinosaurs

Explore the Natural World

Discover more across the Nature FYI family