Pinacosaurus ("plank lizard") is a genus of ankylosaurid dinosaur from the Late Cretaceous of Mongolia and China. There is a theory that states that this dinosaur may have had a small trunk on its nose, but this has never been proven.

In The Land Before Time


Pinacosaurus in The Lonely Journey.

A pair of Pinacosaurus briefly appear in the TV series episode The Lonely Journey. They are briefly seen eating a pile of fern leaves together. Due to the fact that they resemble the series' Ankylosaurus, only without the spikes on their sides, they are likely the result of an animation error.

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