Here are a few examples of Ancient grains:
Spelt- a variety of species related to the common wheat
Khorasan wheat (kamut)- an oriental wheat usually found in Iran
Millet- a gluten-free grain that is widely known as a cereal crop
Barley- a popular cereal used for fermentation of beer
Teff- a species of lovegrass that has a small grain
Oats- nutrition rich food grown for its seed, which is commonly used to make oatmeal and rolled oats
Bulgur- a whole wheat grain that comes from the parbroiled groats of different varieties of wheat