Dinosauria › Reptilia › Theropoda › Troodontidae
Silhouette of Stenonychosaurus

Stenonychosaurus

Stenonychosaurus inequalis (Sternberg 1932)

Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
carnivore, omnivore
Locomotion
bipedal
inferred from clade
Overview

Stenonychosaurus inequalis is a theropod dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a carnivore, omnivore. It was named by (Sternberg 1932). The species is represented by 14 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~43%
confidence from occurrence count
Confirmed
Inferred
Based on 14 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Stenonychosaurus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Stenonychosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

These species share Stenonychosaurus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.

coexisted–with
Triceratops
Triceratops horridus
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coexisted–with
Alamosaurus
Alamosaurus sanjuanensis
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coexisted–with
Edmontosaurus
Edmontosaurus annectens
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coexisted–with
Thescelosaurus
Thescelosaurus neglectus
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coexisted–with
Pachycephalosaurus
Pachycephalosaurus wyomingensis
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same–clade
Dryptosaurus
Dryptosaurus aquilunguis
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same–clade
Tyrannosaurus
Tyrannosaurus rex
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same–clade
Tyrannosaurus
Tyrannosaurus mcraeensis
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