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HomeDinosaurs › Pinacosaurus

Pinacosaurus

Restoration of Brachiosaurus, a giant long-necked sauropod
Photo: Gunnar Bivens, CC BY-SA 4.0, via Wikimedia Commons
Pronunciation
PIN-uh-kuh-SAWR-us
Name means
Broad Lizard
Also known as
Syrmosaurus
Diet
Herbivore
Posture
Quadrupedal
Period
Late Cretaceous
Length
11.5 feet (3.5 meters)
Height
4 feet (1.2 meters)

Order: Ornithischia · Suborder: Thyreophora · Infraorder: Ankylosauria · Family: Ankylosauridae

Found in Mongolia and China, Pinacosaurus was related to Ankylosaurus. It had sharp spikes along its back and sides, and its tail ended in a flat bone with sharp edges resembling a double-edged stone ax. Pinacosaurus is one of the relatively small number of dinosaurs whose young have been found

Mounted Stegosaurus skeleton with rows of back plates and tail spikes
Gary Todd from Xinzheng, China, public domain, via Wikimedia Commons

More Cretaceous-period dinosaurs →

Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.

Frequently asked questions

What does Pinacosaurus mean?

The name Pinacosaurus means “Broad Lizard”. It is pronounced PIN-uh-kuh-SAWR-us.

When did Pinacosaurus live?

Pinacosaurus lived during the Late Cretaceous.

Was Pinacosaurus a carnivore or a herbivore?

Pinacosaurus was a herbivore.

How big was Pinacosaurus?

Pinacosaurus was about 11.5 feet (3.5 meters) long, around 4 feet (1.2 meters) tall.

Related dinosaurs

Other dinosaurs from the Ankylosauridae family.

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Dinosaur quick-reference sheet

The three periods, how to read a dinosaur name, and how carnivores and herbivores differ — on one page. Free.

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