Reptile
Leidyosuchus canadensis
Leidyosuchus canadensisLeidyosuchus canadensis patrolled the meandering river channels and subtropical floodplains of Late Cretaceous Alberta. Equipped with robust jaws and an array of conical teeth, it occupied a generalist predator niche akin to modern crocodilians, ambushing prey along muddy banks and beneath murky water. Abundant fossil material recovered from ancient coastal plain deposits indicates it thrived as a semi-aquatic opportunist alongside diverse dinosaur fauna.
CarnivorousPrehistoricAquatic
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyLepisosteid fish, Aquatic turtles, Small dinosaurs
Predators
- Gorgosaurus libratus
- Daspletosaurus torosus
ThreatsPrehistoric climate shifts and environmental turnover (extinct)
HabitatsSubtropical river channels, floodplains, and coastal swamps
Life span30–50 years (estimated)
Classification
- FamilyCrocodylidae
- SpeciesLeidyosuchus canadensis
Range data is not available yet.
Interaction riskHigh
- Low
- Moderate
- High
- Very high
- Why interaction risk is high
- Treat as hazardous. Do not touch, handle, or eat, and keep a safe distance.
Responsible observation
- Museum Etiquette: Admire fragile fossil remains behind display barriers to prevent surface abrasion.
- Field Observation: Look for diagnostic broad jaw fragments within Campanian riverbed deposits.
Modern Counterpart no rights reserved, uploaded by Vijay Barve · cc0
Ecological Competitor D. Gordon E. Robertson / CC BY-SA 3.0 · cc-by-sa
Apex Predator WehaveaTrex / CC BY-SA 4.0 · cc-by-sa
Prehistoric Relative (c) Ghedoghedo, some rights reserved (CC BY-SA) · cc-by-sa
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