Binomial Edmontosaurus annectens · ed-MON-toh-SOR-us
Late Cretaceous · 73-66 Ma
AI reconstructionEdmontosaurus fossil records in Fossil Atlas are mapped as selected modern discovery locations, with 55 source-backed records currently shown. Known from Late Cretaceous western North America, including Hell Creek, Lance, Frenchman, Horseshoe Canyon, and related units. Key mapped formations in the current dataset include Hell Creek Formation, Lance Fm, Lance Formation?. 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.
Edmontosaurus was a large hadrosaur, or duck-billed dinosaur, from Late Cretaceous North America. It is less flashy than horned or predatory dinosaurs, but it is crucial for understanding the plant-eating side of latest Cretaceous ecosystems. Fossil Atlas maps selected records and links them to formations where available.
Drawn true to scale on a metre ruler.
Length
measured12 m · 39 ft
Largest known specimens
Height
measured3.0 m · 10 ft
Body mass
estimate4,000 kg · 8,800 lb
Typical adult
Top speed
estimate40 km/h · 25 mph
Modelled, debated
Teeth
measured≈ 1000
Brain : body (EQ)
estimate1.1
Encephalization quotient
Position of this animal’s known range across 252 million years of the Mesozoic and beyond.
73-66 million years ago
Edmontosaurus was a duck-billed dinosaur with dense tooth batteries.
Some specimens preserve skin impressions.
It gives Hell Creek a major plant-eating animal beyond horned dinosaurs.
Edmontosaurus records are useful for classroom ecosystem comparisons.
Pins show selected fossil records for Edmontosaurus; 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?
Specimen evidence
These are sourced specimen assets, separate from the AI reconstruction. Only media with clear open or reusable rights is displayed by default.
USNM V 7737 femur
Michael Brett-Surman
USNM V 4698_1
Michael Brett-Surman
USNM V 7737 tibia
Michael Brett-Surman
USNM V 7737 caudals 1
Michael Brett-Surman
Edmontosaurus is represented here by selected fossil records from known from late cretaceous western north america, including hell creek, lance, frenchman, horseshoe canyon, and related units. Fossil Atlas maps those records as modern discovery locations.
No. The map shows modern fossil discovery locations from selected records. Ancient habitat and paleogeographic reconstructions are separate questions.
The current Fossil Atlas records include Hell Creek Formation. Formation coverage depends on the selected dataset and may not be complete.
Yes. Use the expedition card generator to turn the Edmontosaurus map and specimen profile into a shareable card.
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.
Maps use curated PBDB, museum, and specimen-source records with visible caveats.
Pins show where fossils were found or reported today, not exact ancient habitat positions.
Artwork is labeled separately from specimen photos, maps, and source records.
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