The Tuscan Order

Historians debate when the Tuscan Order emerged. Some say that Tuscan was a primitive style that came before the famous Greek Doric, Ionic, and Corinthian orders. But other historians say that the Classical Greek Orders came first, and that Italian builders adapted Greek ideas to develop a Roman Doric style that evolved into the Tuscan Order.

Source:  http://architecture.about.com/od/buildingparts/g/tuscan-column.htm