Dinosaurs · Ceratopsian

Triceratops

Say it tri-SERRA-tops. The name means ‘three-horned face’.

Triceratops beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of ceratopsians

Length: 9 m
Weight: 10 tonnes
Diet: Plant-eatertough palm fronds
Walked: On 4 legs
When: Late Cretaceous68 to 66 million years ago
Fossils found in: USA
Named by: Marsh (1889)
Family tree: Dinosauria › Ornithischia › Ceratopsidae › Chasmosaurinae

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

Ceratopsians. Horned and frilled plant-eaters, such as Triceratops. See all 29

Lived at the same time

Alamosaurus · same country
Ankylosaurus · same country
Dryptosaurus · same country
Ornithomimus · same country
Pachycephalosaurus · same country
Thescelosaurus · same country
Torosaurus · same country
Tyrannosaurus · same country

Other ceratopsians

Leptoceratops Late Cretaceous
Nedoceratops Late Cretaceous
Torosaurus Late Cretaceous
Arrhinoceratops Late Cretaceous
Anchiceratops Late Cretaceous
Einiosaurus Late Cretaceous
Pachyrhinosaurus Late Cretaceous
Protoceratops Late Cretaceous

Source: Triceratops 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.