Cretaceous
Abydosaurus
Abydosaurus mcintoshi
The catalogue presents Abydosaurus as a herbivore member of Brachiosauridae that lived during the Cretaceous, between 104.5 Ma. Its estimated range is 18.0 m in length and 20 t in mass, giving a practical sense of scale. Reference material comes from Mussentuchit Member, Cedar Mountain Formation, Dinosaur National Monument, Utah, USA. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Abydosaurus, the PBDB records the taxonomic attribution as Chure et al. (2010).
The PBDB places it in Brachiosauridae, and the catalogue record assigns it to the family Brachiosauridae.
- PBDB · taxon.parent
- Brachiosauridae
In the PBDB record, the reported stratigraphic range is the Cenomanian.
The PBDB catalogues 1 occurrence, with material from the Cedar Mountain Formation (1). Provenance: United States.
The catalogue records the holotype as DINO 16488 and the type locality as “Mussentuchit Member, Cedar Mountain Formation, Dinosaur National Monument, Utah, USA”.
- DINO 16488
- Mussentuchit Member, Cedar Mountain Formation, Dinosaur National Monument, Utah, USA
The catalogue's reference measurements are 18.0 m in length and 20 t in mass — estimates, which vary with specimen and method.
- 18.0 m
- 20 tons
The record gathers 10 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
- 18.0 m
- Weight
- 20 t
- Period
- Cretaceous
- Time range
- 104.5 Ma
Discovery Information
- First Discovery
- 2010
- Described by
- Daniel Chure et al.
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Brachiosauridae
- Genus
- Abydosaurus
- Species
- A. mcintoshi
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
- DINO 16488
- Type locality
- Mussentuchit Member, Cedar Mountain Formation, Dinosaur National Monument, Utah, USA