Cretaceous
Atrociraptor
Atrociraptor marshalli
The catalogue presents Atrociraptor as a carnivore member of Dromaeosauridae that lived during the Cretaceous, between 70 Ma. Its estimated range is 2.0 m in length and 15 kg in mass, giving a practical sense of scale. Reference material comes from Alberta, Canada. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Atrociraptor, the PBDB records the taxonomic attribution as Currie and Varricchio (2004).
The PBDB places it in Saurornitholestinae, and the catalogue record assigns it to the family Dromaeosauridae.
- PBDB · taxon.parent
- Dromaeosauridae
In the PBDB record, the reported stratigraphic range runs from the Campanian to the Maastrichtian.
The PBDB catalogues 6 occurrences, with material from the Horseshoe Canyon Formation (6). Provenance: Canada.
The catalogue records the holotype as RTMP 95.166.1 and the type locality as “Alberta, Canada”.
- RTMP 95.166.1
- Alberta, Canada
The catalogue's reference measurements are 2.0 m in length and 15 kg in mass — estimates, which vary with specimen and method.
- 2.0 m
- 15 kg
The record gathers 8 bibliographic references registered in the PBDB, listed below.
Where it lived
Fossil occurrences on today’s map and in the tectonic reconstruction.
Positions reconstructed by PBDB/GPlates, not observed; this is not an exact habitat map.
Artistic 3D reconstruction
There is no approved species-specific 3D model yet. Generic anatomy will not be presented as if it were evidence.
Physical Specifications
- Length
- 2.0 m
- Weight
- 15 kg
- Period
- Cretaceous
- Time range
- 70 Ma
Discovery Information
- First Discovery
- 1995
- Described by
- Philip J. Currie & David Varricchio
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Dromaeosauridae
- Genus
- Atrociraptor
- Species
- A. marshalli
Data status
Taxonomic name matched to PBDB and checked on 2026-08-08.
Taxonomic linkage does not automatically validate size, mass, behaviour or appearance.
- Type specimen
- RTMP 95.166.1
- Type locality
- Alberta, Canada