Taxonomic Rank: Infraorder

Ankylosauria Dinosaurs

Heavily armored quadrupedal ornithischians protected by osteoderms and tail clubs.

Cataloged Ankylosauria Members (5 total)

Ankylosauria

Cretaceous PeriodHerbivore

Ankylosaurus magniventris Brown, 1908

The definitive armored dinosaur of the Late Cretaceous, encased in bony osteoderms and armed with an osseous tail club.

7.5–8 m (24.6–26.2 ft)

4.8–6.0 metric tons (10,582–13,228 lbs)

Ankylosauria

Cretaceous PeriodHerbivore

Borealopelta markmitchelli Brown et al., 2017

The world's best-preserved dinosaur fossil, a 110-million-year-old nodosaur with intact skin, armor, and stomach contents.

5–5.5 m (16.4–18.0 ft)

1.2–1.5 metric tons (2,646–3,307 lbs)

Ankylosauria

Cretaceous PeriodHerbivore

Euoplocephalus tutus Lambe, 1910

A heavily armored, tank-like ankylosaurid with armored eyelids and a massive bone-crushing tail club.

5.5–6 m (18.0–19.7 ft)

2.0–2.7 metric tons (4,409–5,952 lbs)

Ankylosauria

Jurassic PeriodHerbivore

Gargoyleosaurus parkpinorum Carpenter et al., 1998

One of the earliest and most complete ankylosaurs known, discovered in the Late Jurassic Morrison Formation.

3–3.8 m (9.8–12.5 ft)

500–800 kg (1,102–1,764 lbs)

Ankylosauria

Cretaceous PeriodHerbivore

Minmi paravertebra Molnar, 1980

A small, agile Australian ankylosaur featuring unique horizontal 'paravertebra' bone plates along its spine.

2.5–3 m (8.2–9.8 ft)

250–400 kg (551–882 lbs)