Species
Acheroraptor temertyorum
Acheroraptor temertyorumAcheroraptor stalked the lush, subtropical floodplains of ancient Montana right up to the end of the Cretaceous period. Possessing uniquely fluted, blade-like teeth and an agile bipedal anatomy, this nimble predator hunted small vertebrates and scoured the riverbanks for opportunist meals. Its discovery confirmed that dromaeosaurid raptors survived successfully alongside apex tyrannosaurs right up to the end-Cretaceous extinction.
CarnivorePrehistoric
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyDidelphodon vorax, Small ornithischians, Lizards
Predators
- Tyrannosaurus rex
- Dakotaraptor steini
- Borealosuchus
ThreatsCretaceous-Paleogene asteroid impact and associated climate collapse
HabitatsSubtropical coastal lowlands, floodplains, and river delta forests
Life span10–20 years
Classification
- FamilyDromaeosauridae
- SpeciesAcheroraptor temertyorum
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Extinct species; known only from Late Cretaceous fossil remains.
Responsible observation
- Museum Specimens: View the holotype maxilla preserved at the Royal Ontario Museum in Toronto.
- Fossil Identification: Look for unique vertical ridges running along the tooth enamel.
Image unavailableCompetitor 
Apex Predator no rights reserved, uploaded by wilderbombyx · cc0
Prey MCDinosaurhunter / CC BY-SA 3.0 · cc-by-sa
Close Relative (c) Fred Wierum, some rights reserved (CC BY-SA) · cc-by-sa
Help improve the field guideSomething wrong?
Checking your Fauna account…Report a name, category, or profile issue for review.