Fauna
Species

Albertosaurus sarcophagus

Albertosaurus sarcophagus

Albertosaurus sarcophagus was a slender, agile apex predator that roamed the coastal plains and forested river valleys of Late Cretaceous North America. Bonebed discoveries reveal multiple individuals of varying ages preserved together, suggesting these carnivores may have hunted or lived in coordinated packs. Long, gracile lower limbs indicate it was among the fastest-running tyrannosaurids, capable of pursuing fleet-footed hadrosaurs across open ground.

PrehistoricCarnivorousBipedal
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyEdmontosaurus regalis, Pachyrhinosaurus canadensis, Hypacrosaurus altispinus
ThreatsExtinction event at end of Cretaceous; competition among carnivores
HabitatsFloodplains, coastal lowlands, and temperate river systems
Life spanAround 25–30 years
  1. FamilyTyrannosauridae
  2. SpeciesAlbertosaurus sarcophagus
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Extinct prehistoric species known only from fossil remains; safe to observe in museum collections.
Responsible observation
  • Fossil Viewing: Visit natural history museums with Late Cretaceous galleries to examine mounted fossil skeletons.
  • Field Ethics: Leave any paleontological finds in place and report discoveries to authorized provincial or state surveys.
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