Fossil Atlas — Specimen ProfileCatalog FA·GORG·1913
Plate 22 · Carnivore

GorgosaurusFossil map and specimen profile

Binomial Gorgosaurus libratus · GOR-goh-SORE-us

Late Cretaceous - 76-75 Ma

Classification
Theropod dinosaur
Family
Tyrannosauridae
Genus / Species
Gorgosaurus libratus
Diet
Carnivore
Range
Western Canada and northern interior North America, especially Dinosaur Park and related Late Cretaceous records.
AI reconstruction of GorgosaurusAI reconstruction
Plate 22 — illustration, not fossil evidenceFA·GORG·1913
Quick provenance answer

Where have Gorgosaurus fossils been found?

Gorgosaurus fossil records in Fossil Atlas are mapped as selected modern discovery locations, with 10 source-backed records currently shown. Western Canada and northern interior North America, especially Dinosaur Park and related Late Cretaceous records. Key mapped formations in the current dataset include Belly River Fm, JUDITH RIVER FM., UPPER, Judith River Fm. These pins are fossil record locations, not a complete ancient habitat map.

This remains a specimen profile: the reconstruction, measurements, field account, and evidence sections stay intact. The fossil-map answer is surfaced here so visitors from search can orient themselves before reading the full dossier.

Mapped records
10
Modern range note
Western Canada and northern interior North America, especially Dinosaur Park and related Late Cretaceous records.
Key formations
Belly River Fm, JUDITH RIVER FM., UPPER, Judith River Fm
Map caveat
Modern fossil locations, not ancient habitat.
Field account

Gorgosaurus was a Late Cretaceous tyrannosaurid from western Canada. Fossil Atlas uses its selected records to deepen the Dinosaur Park and Judith River cluster while separating it from the later Hell Creek T. rex story.

Built to scale

Size against a person

Drawn true to scale on a metre ruler.

0 m2468101214161820222426
Gorgosaurus8.5 m (28 ft)Adult human — 1.8 m5× longer than a person is tall
Field measurements

Measurements & capabilities

MeasuredEstimate

Length

measured

8.5 m · 28 ft

Largest known specimens

Height

measured

3 m (10 ft)

Body mass

estimate

2,500 kg · 5,500 lb

Typical adult

Top speed

estimate

39 km/h · 24 mph

Modelled, debated

Known from

Fossil evidence

01Skulls
02Teeth
03Partial skeletons
04Tyrannosaurid fossils
Key formations
Belly River FmJUDITH RIVER FM., UPPERJudith River FmLower Judith River FmBlack CreekSedanHell CreekDinosaur Park
Geologic timeline

When they lived

Position of this animal’s known range across 252 million years of the Mesozoic and beyond.

252 MaToday

76-75 million years ago

From the notebook

Field notes

01

Gorgosaurus was a close tyrannosaurid relative of later giant predators such as T. rex.

02

Its Dinosaur Park context makes it a useful comparison point for T. rex pages.

03

It helps Fossil Atlas show that tyrannosaurids were diverse before the very end of the Cretaceous.

Modern discovery map

Gorgosaurus fossil discovery map

Pins show selected fossil records for Gorgosaurus; use them as modern discovery evidence, not a complete range map. Modern fossil discovery map: pins show where selected fossil and specimen records were found today, not ancient Earth positions. What does this mean?

Modern Fossil Discovery Map

Specimen evidence

Museum images and 3D records

These are sourced specimen assets, separate from the AI reconstruction. Only media with clear open or reusable rights is displayed by default.

Gorgosaurus sp. (YPM VP 009834). Digital Image: Yale Peabody Museum; photo by Division of Vertebrate Paleontology, Yale Peabody Museum 2016
Specimen image

Gorgosaurus sp. (YPM VP 009834). Digital Image: Yale Peabody Museum; photo by Division of Vertebrate Paleontology, Yale Peabody Museum 2016

Division of Vertebrate Paleontology, Yale Peabody Museum

CC0idigbio
View source
Gorgosaurus (YPM VPPU 022339). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013
Specimen image

Gorgosaurus (YPM VPPU 022339). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013

Marilyn Fox

CC0idigbio
View source
Carnosauria (YPM VPPU 023477). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013
Specimen image

Carnosauria (YPM VPPU 023477). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013

Marilyn Fox

CC0idigbio
View source
Gorgosaurus (YPM VPPU 024969). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013
Specimen image

Gorgosaurus (YPM VPPU 024969). Digital Image: Yale Peabody Museum; photo by Marilyn Fox 2013

Marilyn Fox

CC0idigbio
View source
Research notes

Gorgosaurus fossil map FAQ

Where have Gorgosaurus fossils been found?

Gorgosaurus is represented here by selected fossil records from western canada and northern interior north america, especially dinosaur park and related late cretaceous records. Fossil Atlas maps those records as modern discovery locations.

Is this map where Gorgosaurus lived?

No. The map shows modern fossil discovery locations from selected records. Ancient habitat and paleogeographic reconstructions are separate questions.

What formation is Gorgosaurus associated with here?

The current Fossil Atlas records include Belly River Fm. Formation coverage depends on the selected dataset and may not be complete.

Can I make a Gorgosaurus expedition card?

Yes. Use the expedition card generator to turn the Gorgosaurus map and specimen profile into a shareable card.

Data sources

Attribution

Caveats

Important notes

Selected fossil records from PBDB and museum biodiversity aggregators. Source labels and confidence notes help distinguish canonical paleobiology records from specimen-media records.

Reconstruction images are labeled illustrations and do not represent fossil evidence. Size, speed, and bite-force figures are typical published estimates and remain subject to revision as new specimens are described.

Trust note

Selected source-backed records

Maps use curated PBDB, museum, and specimen-source records with visible caveats.

Trust note

Modern discovery locations

Pins show where fossils were found or reported today, not exact ancient habitat positions.

Trust note

Reconstruction is not evidence

Artwork is labeled separately from specimen photos, maps, and source records.

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