Cretaceous
Amazonsaurus
Amazonsaurus maranhensis
The catalogue presents Amazonsaurus as a herbivore member of Diplodocoidea indet. that lived during the Cretaceous, between 125.0–112.0 Ma. Its estimated range is 12.0 m in length and 5.0–7.0 t in mass, giving a practical sense of scale. Reference material comes from Itapecuru Formation, Maranhão, Brasil. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Amazonsaurus, the PBDB records the taxonomic attribution as Carvalho et al. (2003).
The PBDB places it in Rebbachisauridae, and the catalogue record assigns it to the family Diplodocoidea indet..
- PBDB · taxon.parent
- Diplodocoidea indet.
In the PBDB record, the reported stratigraphic range runs from the Aptian to the Albian.
The PBDB catalogues 1 occurrence, with material from the Itapecuru Formation (1). Provenance: Brazil.
The catalogue records the holotype as DNPM 70-I (tentativo) and the type locality as “Itapecuru Formation, Maranhão, Brasil”.
- DNPM 70-I (tentativo)
- Itapecuru Formation, Maranhão, Brasil
The catalogue's reference measurements are 12.0 m in length and 5.0–7.0 t in mass — estimates, which vary with specimen and method.
- 12.0 m
- 5.0-7.0 tons
The record gathers 15 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
- 12.0 m
- Weight
- 5.0–7.0 t
- Period
- Cretaceous
- Time range
- 125.0–112.0 Ma
Discovery Information
- First Discovery
- 2003
- Described by
- Carvalho et al.
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Diplodocoidea indet.
- Genus
- Amazonsaurus
- Species
- A. maranhensis
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
- DNPM 70-I (tentativo)
- Type locality
- Itapecuru Formation, Maranhão, Brasil