Cretaceous
Parksosaurus
Parksosaurus warreni
The catalogue presents Parksosaurus as a herbivore member of Thescelosauridae that lived during the Cretaceous, between 66.5–66.0 Ma. Its estimated range is 2.4 m in length and 40–60 kg in mass, giving a practical sense of scale. Reference material comes from Horseshoe Canyon Formation, Alberta, Canada. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Parksosaurus, the PBDB records the taxonomic attribution as Sternberg (1937).
The PBDB places it in Thescelosaurinae, and the catalogue record assigns it to the family Thescelosauridae.
- PBDB · taxon.parent
- Thescelosauridae
In the PBDB record, the reported stratigraphic range is the Maastrichtian.
The PBDB catalogues 3 occurrences, with material from the Horseshoe Canyon Formation (3). Provenance: Canada.
The catalogue records the holotype as ROM 804 and the type locality as “Horseshoe Canyon Formation, Alberta, Canada”.
- ROM 804
- Horseshoe Canyon Formation, Alberta, Canada
The catalogue's reference measurements are 2.4 m in length and 40–60 kg in mass — estimates, which vary with specimen and method.
- 2.4 m
- 40-60 kg
The record gathers 46 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
- 2.4 m
- Weight
- 40–60 kg
- Period
- Cretaceous
- Time range
- 66.5–66.0 Ma
Discovery Information
- First Discovery
- 1937
- Described by
- Parks
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Thescelosauridae
- Genus
- Parksosaurus
- Species
- P. warreni
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
- ROM 804
- Type locality
- Horseshoe Canyon Formation, Alberta, Canada