Species
Edmontosaurus regalis
Edmontosaurus regalisAlso known as Edmontosaur
Edmontosaurus regalis was a massive duck-billed dinosaur that roamed the coastal floodplains and lush river deltas of Late Cretaceous North America. Exceptionally preserved mummies reveal a fleshy cockscomb atop its skull, an ornamental soft-tissue structure likely deployed in visual display and herd signaling. Dense dental batteries packed with hundreds of continuously replacing teeth allowed it to pulverize tough twigs, conifer foliage, and early flowering plants.
HerbivorePrehistoric
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyConifer needles, Flowering plants, Ferns
Predators
- Albertosaurus sarcophagus
- Daspletosaurus
- Gorgosaurus libratus
ThreatsPredation by large tyrannosaurids and changing sea levels
HabitatsCoastal plains, river floodplains, and temperate swamp forests
Life spanEstimated 25–35 years
Classification
- FamilyHadrosauridae
- SpeciesEdmontosaurus regalis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct species known only from fossil remains; entirely safe to observe in museum exhibits.
Responsible observation
- Museum Exhibits: Search for articulated skeletons to spot the fleshy comb structure preserved in rock.
- Trackway Analysis: Inspect footprint casts to observe how weight shifted between two and four limbs.
Predator (c) Ryan Somma, some rights reserved (CC BY-SA) · cc-by-sa
Neighbor Etemenanki3 / CC BY-SA 4.0 · cc-by-sa
Close Relative (c) The_Wookies, some rights reserved (CC BY) · cc-by
Same Family Yuya Tamai from Gifu, Japan / CC BY 2.0 · cc-by
Help improve the field guideSomething wrong?
Checking your Fauna account…Report a name, category, or profile issue for review.