Mantellisaurus atherfieldensis
Mantellisaurus is a genus of iguanodontian dinosaur that lived in the Barremian and early Aptian ages of the Early Cretaceous Period of Europe. Its remains are known from Belgium (Bernissart), England, Spain and Germany. The type and only species is M. atherfieldensis. Formerly known as Iguanodon atherfieldensis, the new genus Mantellisaurus was erected for the species by Gregory Paul in 2007. According to Paul, Mantellisaurus was more lightly built than Iguanodon and more closely related to Ouranosaurus, making Iguanodon in its traditional sense paraphyletic. It is known from many complete and almost complete skeletons. The genus name honours Gideon Mantell, the discoverer of Iguanodon.

bryan... from Taipei, Taiwan · CC BY-SA 2.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MantellisaurusPBDB
- Diet
- herbivorePBDB, for Ornithopoda
- Life habit
- ground dwelling, gregariousPBDB, for Ornithischia
- Motility
- actively mobilePBDB, for Ornithischia
- Environment
- terrestrialPBDB, for Ornithischia
Time the record covers
At least 4.3 million years on record.
The record covers at least 125.77 Mya to 121.4 Mya. No occurrence read is dated outside 143.1 Mya to 119.57 Mya.
13 occurrences of Mantellisaurus atherfieldensis on record, most of them in the Early Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
13 occurrences- Early Cretaceous100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
8 formations
- Wessex Formation · Wealden Group2
- Arcillas de Morella Formation2
- Vectis Formation · Wealden Group1
- Hythe Formation · Lower Greensand Group1
- Calcaires à Spatangues Formation1
- Weald Clay Formation · Wealden Group1
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The named rock units Mantellisaurus atherfieldensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Mantellisaurus atherfieldensis and its relatives
Early CretaceousWhere Mantellisaurus atherfieldensis and its relatives were recorded in the Early Cretaceous.
Found in the same rock
242 taxa- Theropoda5 sites
- Lepidotes4 sites
- Iguanodon3 sites
- Iguanodon bernissartensis3 sites
- Sauropoda3 sites
- Weichselia3 sites
- Caturus2 sites
- Coniferophyta2 sites
- Crocodylia2 sites
- Goniopholididae2 sites
- Goniopholis2 sites
- Hybodontidae2 sites
- Osteichthyes2 sites
- Pachythrissops vectensis2 sites
- Plesiosauria2 sites
- Pterosauria2 sites
- Scheenstia mantelli2 sites
- "Clockhousea" sp.1 site
- Abietineaepollenites1 site
- Adiantites1 site
- Aequitriradites verrucosus1 site
- Aeschnidiidae1 site
- Aethalion robustus1 site
- Albanerpetontidae1 site
The Paleobiology Database records 13 sites for Mantellisaurus atherfieldensis, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
11 references- Ornithopod dinosaurs2
- Sobre las especies de Iguanodon (Dinosauria, Ornithischia) encontradas en el Cretácico inferior de España [On the species of Iguanodon (Dinosauria, Ornithischia) found in the Lower Cretaceous of Spain]2
- A brief approach about the ornithopod dinosaurs from the Papo-Seco Formation (Cabo Espichel, western central Portugal)1
- New hadrosauriform cranial remains from the Arcillas de Morella Formation (lower Aptian) of Morella, Spain1
- On the taxonomy and diversity of Wealden iguanodontian dinosaurs (Ornithischia: Ornithopoda)1
- A revised taxonomy of the iguanodont dinosaur genera and species1
- The first European allosauroid dinosaur (Lower Cretaceous, Wealden Group, England)1
- Benton and Spencer, 19951
- A mass accumulation of vertebrates from the Lower Cretaceous of Nehden (Sauerland), West Germany1
- On the skeleton of Iguanodon atherfieldensis sp. nov., from the Wealden Shales of Atherfield (Isle of Wight)1
- Note sur des ossements fossiles découverts dans le calcaire néocomien de Wassy (Haute-Marne) [Note on some fossil bones found in the Neocomian limestone of Wassy (Haute Marne)]1
Each of the 13 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Mantellisaurus atherfieldensis
- Source
- Wikipedia/Commons
- Credit
- bryan... from Taipei, Taiwan
- Licence
- CC BY-SA 2.0
- Commercial use
- the licence allows it
Photogrammetry
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Mantellisaurus atherfieldensis · NHMUK:PAL:PV R 11521
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMantellisaurus through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hooley 1925)