Mymoorapelta — artistic reconstruction

Jurassic

Mymoorapelta

Mymoorapelta maysi

The catalogue presents Mymoorapelta as a herbivore member of Nodosauridae that lived during the Jurassic, between 155.0–150.0 Ma. Its estimated range is 3.0 m in length and 400 kg in mass, giving a practical sense of scale. Reference material comes from Morrison Formation, Colorado, USA. Size and mass are approximations and may change with new fossils or methods.

Herbivore155.0–150.0 MaNodosauridae

Evidence-backed summary

For Mymoorapelta, the PBDB records the taxonomic attribution as Kirkland and Carpenter (1994).

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

In the PBDB record, the reported stratigraphic range runs from the Kimmeridgian to the Tithonian.

The PBDB catalogues 2 occurrences, with material from the Morrison Formation (2). Provenance: United States.

The catalogue records the holotype as DMNH 2973 and the type locality as “Morrison Formation, Colorado, USA”.

  • DMNH 2973
  • Morrison Formation, Colorado, USA

The catalogue's reference measurements are 3.0 m in length and 400 kg in mass — estimates, which vary with specimen and method.

  • 3.0 m
  • 400 kg

The record gathers 21 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 map2 PBDB
MorrisonMorrison
PBDB occurrences
Map at the time · ~150 Ma2 PBDB
MorrisonMorrison
PBDB occurrences
Present mean latitude39.1° N
Reconstructed mean latitude26.8° 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
3.0 m
Weight
400 kg
Period
Jurassic
Time range
155.0–150.0 Ma

Discovery Information

First Discovery
1994
Described by
Kirkland & Carpenter

Taxonomic Classification

Kingdom
Animalia
Phylum
Chordata
Class
Reptilia
Order
Ornithischia
Family
Nodosauridae
Genus
Mymoorapelta
Species
M. maysi

Paleobiology Database · txn:57682

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
DMNH 2973
Type locality
Morrison Formation, Colorado, USA