Glyptodons were medium-sized, shelled mammals that lived during the ice ages.
Glyptodons were short, stout armadillo-like animals that had large, protective shells like turtles and club tails for protection. All glyptodons had four stumpy legs ending in large flat feet and had short necks which remained closely inside their shells. Glyptodons, like turtles, possessed a bottom half of their shells and could retract into their shells when danger came along.
Glyptodons traveled in herds, waddling slowly. The feelings of glyptodons were easily hurt, and most lacked intellect. 
The glyptodons were among the animals that left the northern forests and valleys due to oncoming cold of the ice ages, heading for warmer southern climates.
Glyptodon herds reached the southern valleys and enjoyed the naturally-occurring water slides and pools formed by global warming, but quickly left these games to escape the floods brought on by melting ice and snow, which would flood the valley they resided in. The glyptodons escaped the flood and went on to find new homes.
A number of glyptodons later encountered a species long since thought extinct: an angry mother Tyrannosaurus on the lookout for her missing children.
Further on, during the days of the continental drift, the glyptodons were forced, along with the other herds of animals, to find a new home as the land was drastically changing due to the shifting continents. The glyptodons, along with all other animals, found a new home in the form of a great landmass across the seas.
- Ice Age (First appearance)
- Ice Age: The Meltdown
- Surviving Sid
- Ice Age: Dawn of the Dinosaurs
- Ice Age: A Mammoth Christmas
- Scrat's Continental Crack-up Part 2
- Ice Age: Continental Drift
Behind the Scenes
While the glyptodons in the Ice Age films sport shells like those of a turtle with a top and bottom half, true glyptodons had only one side of their shell, the top half, leaving their underbelly exposed.
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