Glirodon is a genus of extinct mammal from the Upper Jurassic. It was a relatively early member of the also-extinct order of Multituberculata, suborder "Plagiaulacida". These mammals lived in North America during the Mesozoic, also known as the "age of the dinosaurs". The genus Glirodon has been described by Engelmann G.F. and Callison G. (1999) from a 'gliriform tooth'. Present in stratigraphic zones 4 and 6.