Cretaceous
Torosaurus
Torosaurus latus
The catalogue presents Torosaurus as a herbivore member of Ceratopsidae that lived during the Cretaceous, between 68.0–66.0 Ma. Its estimated range is 8.0–9.0 m in length and 6.0–8.0 t in mass, giving a practical sense of scale. Reference material comes from Lance Formation, Wyoming, USA. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Torosaurus, the PBDB records the taxonomic attribution as Marsh (1891).
The PBDB places it in Triceratopsini, and the catalogue record assigns it to the family Ceratopsidae.
- PBDB · taxon.parent
- Ceratopsidae
In the PBDB record, the reported stratigraphic range runs from the Campanian to the Maastrichtian.
The PBDB catalogues 7 occurrences, with material from the Hell Creek Formation (2), from the Lance Formation (2) and from the Scollard Formation (1). Provenance: United States and Canada.
The catalogue records the holotype as YPM 1830 and the type locality as “Lance Formation, Wyoming, USA”.
- YPM 1830
- Lance Formation, Wyoming, USA
The catalogue's reference measurements are 8.0–9.0 m in length and 6.0–8.0 t in mass — estimates, which vary with specimen and method.
- 8.0-9.0 m
- 6.0-8.0 tons
The record gathers 60 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
- 8.0–9.0 m
- Weight
- 6.0–8.0 t
- Period
- Cretaceous
- Time range
- 68.0–66.0 Ma
Discovery Information
- First Discovery
- 1891
- Described by
- Othniel Charles Marsh
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Ceratopsidae
- Genus
- Torosaurus
- Species
- T. latus
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
- YPM 1830
- Type locality
- Lance Formation, Wyoming, USA