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Triceratops

The Redpath Museum's Triceratops skull is named “Sara”

 skull  

Species: Triceratops horridus
Family: Ceratopsidae
Group: Ceratopsia
Name means: Three-horned face

Adult size: 9 metres long (30 ft)
 triceratops and human

Adult weight: 6-12 tonnes
Age at death: Teenager (10 to 15 years old)
Teenager Length: Approximately 6 metres.
Teenager weight: Approximately 3-5 tonnes. 

Size of fossil skull: 2m long, 1.35m high, 1.05m wide

Weight of fossil skull: 275 kg. The skull was found broken into 400 pieces. It took 3 years for the paleontology technician, Chantal Montreuil, to clean, glue and reassemble the skull like a three-dimensional puzzle. There are still lots of missing pieces.

Discovery: Found by Dr. Hans Larsson and his paleontology field team in Eastend, southern Saskatchewan (collected under permit from the Royal Saskatchewan Museum).

Lived during: Late Cretaceous

Diet: Herbivore. Ate plants, possibly small trees.

 discovered in SaskatchewanHabitat: Discovered in Alberta to Colorado, and Saskatchewan to South Dakota.
Behaviour: Lived in packs of hundreds or thousands.

Other info: Aside from defense, horns may have been used for attracting a mate as they changed shape and orientation between childhood and adulthood. The stiff frill at the back of the triceratops’ head also changed shape and orientation so it may have also been used to attract a mate. Jaws were tipped with a beak which allowed them to pluck the low plants they ate. It is believed they may have eaten small trees because their jaw muscles were so powerful.

For a printable PDF version, download Dinosaurs of the Redpath Museum (PDF)


Images from top to bottom:
1) Mike Chung (Redpath Museum).
2) Marmelad. Accessed at the Wikipedia Commons. License terms.
3) EOZyo. Accessed at the Wikipedia Commons (includes licensing information).