Eberle discovered that Coryphodon fed on fresh Arctic foliage during sunny times and dead Arctic leaves, wood, and fungi during the dark periods.

• 埃尔伯发现，在有光照的时期，冠齿兽食用的是新鲜植物叶子，而进入永昼期时，它们的食物变成了枯叶，树木和菌类。