Nemegtosaurus — artistic reconstruction

Cretaceous

Nemegtosaurus

Nemegtosaurus mongoliensis

The catalogue presents Nemegtosaurus as a herbivore member of Nemegtosauridae that lived during the Cretaceous, between 70.0–66.0 Ma. Its estimated range is 15.0 m in length and 10.0 t in mass, giving a practical sense of scale. Reference material comes from Nemegt Formation, Mongolia. Size and mass are approximations and may change with new fossils or methods.

Herbivore70.0–66.0 MaNemegtosauridae

Evidence-backed summary

For Nemegtosaurus, the PBDB records the taxonomic attribution as Nowinski (1971).

The PBDB places it in Nemegtosauridae, and the catalogue record assigns it to the family Nemegtosauridae.

In the PBDB record, the reported stratigraphic range runs from the Coniacian to the Maastrichtian.

The PBDB catalogues 1 occurrence, with material from the Nemegt Formation (1). Provenance: Mongolia.

The catalogue records the holotype as ZPAL MgD-I/9 and the type locality as “Nemegt Formation, Mongolia”.

  • ZPAL MgD-I/9
  • Nemegt Formation, Mongolia

The catalogue's reference measurements are 15.0 m in length and 10.0 t in mass — estimates, which vary with specimen and method.

  • 15.0 m
  • 10.0 tons

The record gathers 47 bibliographic references registered in the PBDB, listed below.

Records compiled on 2026-08-08

Where it lived

Fossil occurrences on today’s map and in the tectonic reconstruction.

Present-day map1 PBDB
Nemegt
PBDB occurrences
Map at the time · ~70 Ma1 PBDB
Nemegt
PBDB occurrences
Present mean latitude43.5° N
Reconstructed mean latitude36.5° N

Positions reconstructed by PBDB/GPlates, not observed; this is not an exact habitat map.

Paleobiology Database · GPlates · CC BY 4.0

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
15.0 m
Weight
10.0 t
Period
Cretaceous
Time range
70.0–66.0 Ma

Discovery Information

First Discovery
1971
Described by
Antoni Nowinski

Taxonomic Classification

Kingdom
Animalia
Phylum
Chordata
Class
Reptilia
Order
Saurischia
Family
Nemegtosauridae
Genus
Nemegtosaurus
Species
N. mongoliensis

Paleobiology Database · txn:38671

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
ZPAL MgD-I/9
Type locality
Nemegt Formation, Mongolia