Dinosaurs · Armoured dinosaur

Tsagantegia

Say it tsah-gahn-tay-gee-a. The name means ‘Tsagan Teg’.

No length given in the museum's record.

The museum gives no length for this dinosaur, so we cannot draw it to scale.Body shape drawn for this site, showing the general build of armoured dinosaurs

Diet: Plant-eater
When: Late Cretaceous99 to 84 million years ago
Fossils found in: Mongolia
Named by: Tumanova (1993)
Family tree: Dinosauria › Ornithischia › Thyreophora › Ankylosauria › Ankylosauridae

Where Tsagantegia sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

Armoured dinosaurs. Plated and armoured plant-eaters, such as Stegosaurus and the ankylosaurs. See all 33

Lived at the same time

Achillobator · same country
Graciliceratops · same country
Erlikosaurus · same country
Garudimimus · same country
Talarurus · same country
Segnosaurus · same country
Alectrosaurus · same country
Microceratus · same country

Other armoured dinosaurs

Talarurus Late Cretaceous
Nodosaurus Early Cretaceous
Struthiosaurus Late Cretaceous
Pinacosaurus Late Cretaceous
Saichania Late Cretaceous
Panoplosaurus Late Cretaceous
Gobisaurus Early Cretaceous
Minmi Early Cretaceous

Source: Tsagantegia in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.