Dinosauria›Reptilia›Theropoda›Tyrannosauridae
Silhouette of Gorgosaurus libratus

Gorgosaurus Gorgosaurus libratus (Lambe 1914)

/ˌɡɔːrɡəˈsɔːrəs/
Late Cretaceous (Campanian) · 83.6–72.2 Mya

Key Statistics

Diet
carnivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
solitary

Where It Was Found

Country
Canada
Region
Alberta
Formations
Dinosaur Park · Oldman
Dig sites
12
distinct collections
Recorded finds in Canada. Present-day positions: the continents have moved since.

Overview

Gorgosaurus libratus is a theropod dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a carnivore. It is recorded as ground-dwelling and solitary. Fossils have been recovered from Alberta, Canada. It was named by (Lambe 1914). The species is represented by 15 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~45%
well attested
Based on 15 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Gorgosaurus libratus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Gorgosaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Gorgosaurus libratus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.

predator–prey
Centrosaurus
Centrosaurus apertus
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predator–prey
Stegoceras
Stegoceras validum
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predator–prey
Hypacrosaurus
Hypacrosaurus stebingeri
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coexisted–with
Protoceratops
Protoceratops andrewsi
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coexisted–with
Corythosaurus
Corythosaurus casuarius
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same–clade
Ornithoides
Ornithoides oshiensis
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same–clade
Ovoraptor
Ovoraptor djadochtari
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same–clade
Fenestrosaurus
Fenestrosaurus philoceratops
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