Cretaceous
Mantellisaurus
Mantellisaurus atherfieldensis
The catalogue presents Mantellisaurus as a herbivore member of Iguanodontidae that lived during the Cretaceous, between 125 Ma. Its estimated range is 7.0 m in length and 1.35 t in mass, giving a practical sense of scale. Reference material comes from Isle of Wight, England. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Mantellisaurus, the PBDB records the taxonomic attribution as Paul (2007).
The PBDB places it in Iguanodontia, and the catalogue record assigns it to the family Iguanodontidae.
- PBDB · taxon.parent
- Iguanodontidae
In the PBDB record, the reported stratigraphic range runs from the Berriasian to the Aptian.
The PBDB catalogues 13 occurrences, with material from the Wessex Formation (2), from the Arcillas de Morella Formation (2) and from the Vectis Formation (1). Provenance: United Kingdom, Spain, Germany, France, Belgium and Portugal.
The catalogue records the holotype as NHMUK PV R 5764 and the type locality as “Isle of Wight, England”.
- NHMUK PV R 5764
- Isle of Wight, England
The catalogue's reference measurements are 7.0 m in length and 1.35 t in mass — estimates, which vary with specimen and method.
- 7.0 m
- 1.35 tons
The record gathers 22 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
- 7.0 m
- Weight
- 1.35 t
- Period
- Cretaceous
- Time range
- 125 Ma
Discovery Information
- First Discovery
- 2007
- Described by
- Paul Barrett
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Iguanodontidae
- Genus
- Mantellisaurus
- Species
- M. atherfieldensis
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
- NHMUK PV R 5764
- Type locality
- Isle of Wight, England