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From ‘‘ Extinct Monsters.’’] 
THE GLYPTODON. 
A curious bony cap protected the head, and 
The forefather of the Armadillo. 
of the Glyptodon, on the contrary, was composed of bony plates, inflexibly united to one another at the edges. 
encased in armour. 
The shell 
Its modern representatives, however, have their armour divided into movable bands, which enable them to roll themselves into a ball. 
the tail was likewise 
