Cretaceous
Falcarius
Falcarius utahensis
The catalogue presents Falcarius as a herbivore member of Therizinosauria that lived during the Cretaceous, between 143.1–132.6 Ma. Its estimated range is 4.0–5.0 m in length and 70–100 kg in mass, giving a practical sense of scale. Reference material comes from Crystal Geyser Quarry, lower Yellow Cat Member, Cedar Mountain Formation, Utah, USA. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Falcarius, the PBDB records the taxonomic attribution as Kirkland et al. (2005).
The PBDB places it in Therizinosauria, and the catalogue record assigns it to the family Therizinosauria.
- PBDB · taxon.parent
- Therizinosauria
In the PBDB record, the reported stratigraphic range runs from the Berriasian to the Valanginian.
The PBDB catalogues 1 occurrence, with material from the Cedar Mountain Formation (1). Provenance: United States.
The catalogue records the type locality as “Crystal Geyser Quarry, lower Yellow Cat Member, Cedar Mountain Formation, Utah, USA”.
- Crystal Geyser Quarry, lower Yellow Cat Member, Cedar Mountain Formation, Utah, USA
The catalogue's reference measurements are 4.0–5.0 m in length and 70–100 kg in mass — estimates, which vary with specimen and method.
- 4.0-5.0 m
- 70-100 kg
The record gathers 12 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
- 4.0–5.0 m
- Weight
- 70–100 kg
- Period
- Cretaceous
- Time range
- 143.1–132.6 Ma
Discovery Information
- First Discovery
- 2005
- Described by
- Kirkland et al.
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Therizinosauria
- Genus
- Falcarius
- Species
- u. utahensis
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
- not documented in this catalogue
- Type locality
- Crystal Geyser Quarry, lower Yellow Cat Member, Cedar Mountain Formation, Utah, USA