Cretaceous
Iguanodon
Iguanodon bernissartensis
The catalogue presents Iguanodon as a herbivore member of Iguanodontidae that lived during the Cretaceous, between 125.8–119.6 Ma. Its estimated range is 9.0–11.0 m in length and 3.0–5.0 t in mass, giving a practical sense of scale. Reference material comes from Sainte-Barbe Clays, Bernissart, Belgium. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Iguanodon, the PBDB records the taxonomic attribution as Mantell (1825).
The PBDB places it in Ankylopollexia, 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 Kimmeridgian to the Maastrichtian.
The PBDB catalogues 23 occurrences, with material from the Arcillas de Morella Formation (6), from the Wessex Formation (3) and from the Capas Rojas Formation (2). Provenance: Spain, United Kingdom, Germany, France and Belgium.
The catalogue records the holotype as IRSNB R51 and the type locality as “Sainte-Barbe Clays, Bernissart, Belgium”.
- IRSNB R51
- Sainte-Barbe Clays, Bernissart, Belgium
The catalogue's reference measurements are 9.0–11.0 m in length and 3.0–5.0 t in mass — estimates, which vary with specimen and method.
- 9.0-11.0 m
- 3.0-5.0 tons
The record gathers 220 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
- 9.0–11.0 m
- Weight
- 3.0–5.0 t
- Period
- Cretaceous
- Time range
- 125.8–119.6 Ma
Discovery Information
- First Discovery
- 1822
- Described by
- Gideon Mantell
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Iguanodontidae
- Genus
- Iguanodon
- Species
- I. bernissartensis
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
- IRSNB R51
- Type locality
- Sainte-Barbe Clays, Bernissart, Belgium