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EXHIBIT 73

Minmi

Minmi paravertebra

Minmi is an Australian ankylosaur known from incomplete type material. The more complete skeleton renamed Kunbarrasaurus belongs in a separate profile.

Evidence profile
PERIODEarly Cretaceous[1]
DIETHerbivoreEvidence and uncertainty in the dossier
TOTAL LENGTHSee the dossierEstimate scope matters
FOSSILS FOUNDAustralia, Queensland[1]
CompareRead the dossierView the sources

MEET THE ANIMAL

Meet Minmi

Minmi is an Australian armored dinosaur known from bones near Roma in southwestern Queensland. The museum reference of about three metres supplies a rough idea of scale rather than the measured length of a complete adult. Its original material is incomplete, so a detailed living outline needs to be treated with care. [D2]

A Queensland skeleton was once placed in Minmi, but a research team recognized it as a different dinosaur in 2015: Kunbarrasaurus ieversi. The revised identification matters because its unusual skull and inner ear belong to that separate animal. They should not simply fill missing parts of a Minmi profile. [S1]

The wider ankylosaur group had armor made from bone embedded in the skin, and its teeth support plant eating. This broader evidence helps interpret Minmi without borrowing the other skeleton's details. Armor can be preserved after its outer covering decays. A restored silhouette therefore combines actual fossil pieces with comparisons, while the original Roma material remains the anchor for Minmi's identity. [S2]

Overview sources
  1. Australia’s new armoured dinosaur unveiledUniversity of Queensland; Lucy Leahey and Steve Salisbury research-team account · Accessed 2026-10-04Inspected: excerpt
  2. Ankylosaurs: The dinosaurs with built-in armourNatural History Museum, London; Katie Spence with researcher Susannah Maidment · Accessed 2026-10-04Inspected: page

PREHISTORIC ANIMAL DOSSIER

A life in profile.

The animal, the evidence, and the questions still open.

Minmi is known from incomplete postcranial fossils. A reassigned skeleton cannot supply its missing skull or species-specific feeding details.

Profile scope: Species: Minmi paravertebra, centered on postcranial holotype QM F10329. Excludes QM F18101, renamed Kunbarrasaurus ieversi in 2015. Minmi's diagnosability is debated.

Time
Early Cretaceous
Fossil locations in this exhibit
Australia, Queensland
How to read the evidence

Source supported identifies a description documented by the cited source. Inferred marks a reconstruction or functional estimate. Debated marks competing interpretations. Not established means the sources reviewed for this dossier do not support a firm conclusion; it does not mean a behavior never occurred.

A size reference is an estimate, not a population range. Nesting evidence does not by itself establish courtship, mate choice, or lifelong pairing.

Length

Inferred

About 3 m (museum reference)

The Australian Museum gives a rounded 3 m reference. Its page does not specify a complete individual, estimation method or life stage, so this is not a measured adult range. [D2]

Mass

Not established

Not established here

No adequately scoped mass estimate for Minmi's type material was established in the reviewed sources.

Diet and feeding

Inferred

Herbivory inferred from ankylosaur affinity

Ankylosaurs are plant eaters. Gut contents from formerly referred material cannot automatically be transferred to Minmi's holotype. [D1]

Habitat and setting

Source supported

Lower Aptian Bungil Formation, Queensland

The reviewed regional study places Minmi in the Bungil Formation of Queensland. Its type locality is near Roma; a particular preferred terrestrial habitat remains unresolved. [D3] [D1]

Movement

Inferred

Quadrupedal ankylosaur

Four-legged movement follows its ankylosaur anatomy. Claims that it outran predators are not treated as measured performance. [D1] [D2]

Distinctive anatomy

Source supported

Postcranial bones and paravertebral elements

QM F10329 preserves postcranial material. Its paravertebral elements concern ossified tissues along the back; the skull of Kunbarrasaurus is not Minmi's skull. [D1]

Reproduction & life together

Reproduction and care

Not established

Not established here

Minmi nest structure, incubation and parental care are not established by the reviewed type-material sources.

Courtship and mating

Not established

Not established here

The reviewed sources do not establish Minmi mating behavior, sexual differences or display colors.

Social behavior

Not established

Not established here

The incomplete type specimen does not establish herd structure, group defense or solitary living.

Dossier research & sources

Sources and inspection notes for the claims in this profile.

  1. Cranial osteology of the ankylosaurian dinosaur formerly known as Minmi sp. from the Lower Cretaceous Allaru MudstonePeerJ; Leahey and colleagues (2015), research-author institutional PDF · Accessed 2026-10-02Inspected introduction, size/maturity discussion and taxonomic reassessment; distinguishes Minmi QM F10329 from Kunbarrasaurus QM F18101. · Inspected: excerpt
  2. Dinosaur — Minmi paravertebraAustralian Museum; Anne Musser · Accessed 2026-10-02Museum profile, 3 m educational reference and Minmi Crossing locality. Some anatomical/dietary text mixes historically referred material; those claims are excluded here. · Inspected: page
  3. New Ankylosaurian Cranial Remains From the Lower Cretaceous (Upper Albian) Toolebuc Formation of Queensland, AustraliaFrontiers in Earth Science; Frauenfelder et al. (2022) · Accessed 2026-10-02Inspected introduction and regional discussion: Minmi's disputed validity and lower Aptian Bungil provenance; new cranial fossils are not attributed to Minmi here. · Inspected: excerpt

THE STORY IN THE FOSSILS

Meet Minmi.

Minmi's type material belongs to the Early Cretaceous Bungil Formation of Queensland. Its taxonomic validity is debated: some researchers regard it as insufficiently diagnostic, while others consider it distinguishable from Australia's other ankylosaurs. [3]

A much more complete Queensland skeleton once called Minmi sp. was named Kunbarrasaurus ieversi in 2015. That reassignment matters: its skull and feeding evidence cannot simply fill the gaps in a profile of Minmi paravertebra. [1]

A note on scale and time

The dossier identifies the scope of each reference estimate. A mount, an individual fossil and a species-wide adult range are different measurements. Comparison metrics remain unavailable where adult scope has not been established. Unknown does not mean zero.

Sources & editorial notes

Sources support the stated claims and scopes. Refer to the evidence notes for uncertainty.

  1. Cranial osteology of the ankylosaurian dinosaur formerly known as Minmi sp. from the Lower Cretaceous Allaru MudstonePeerJ; Leahey and colleagues (2015), research-author institutional PDF · Accessed 2026-10-02Inspected introduction, size/maturity discussion and taxonomic reassessment; distinguishes Minmi QM F10329 from Kunbarrasaurus QM F18101. · Inspected: excerpt
  2. Dinosaur — Minmi paravertebraAustralian Museum; Anne Musser · Accessed 2026-10-02Museum profile, 3 m educational reference and Minmi Crossing locality. Some anatomical/dietary text mixes historically referred material; those claims are excluded here. · Inspected: page
  3. New Ankylosaurian Cranial Remains From the Lower Cretaceous (Upper Albian) Toolebuc Formation of Queensland, AustraliaFrontiers in Earth Science; Frauenfelder et al. (2022) · Accessed 2026-10-02Inspected introduction and regional discussion: Minmi's disputed validity and lower Aptian Bungil provenance; new cranial fossils are not attributed to Minmi here. · Inspected: excerpt

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