The above is better but the one below is mine: http://www.forumancientcoins.com/dougsmith/denom.html Greek is a lot harder because there were several systems in different parts of the Greek world.
Here is one for greek, like doug mentioned there is many others but these are the more common types. http://www.alluriana.com/ancient-coin-denominations.html
Like many questions in the field of ancient coins OP, the answer will always be, "Can you please be more specific?" If asking for Roman coins, or common Greek ones, the great people here have given you assitance. However, what about Himyarite? Judean? Celtic? Axumite? Scythian? Persian? All of these cultures are variously listed in "Greek" coin books. "Ancient" is a huge field, of hundreds of cultures, over more than 1000 years. Specificity is necessary. It would be like asking, "What are all of the denominations used by countries in the 20th century?" Kinda need to narrow her down.
Of course, but when one does not know one must ask to the extent of their knowledge. Specificity can only be had after further inquiry.
