Earth during the Middle Ordivician Period @ 460 Ma. Gondwana is seen above the equator (Australia & South China) and bellow the equator (North China, Kazakh terranes, Tarim, Antartica, India, Madagascar, Africa and South America). Laurentia, Baltica & Sibera are seperate continents, with Avalonia on its way to collide Baltica to form the Calledonian Orogeny, and Acadia on its way to collide Laurentia to form the Acadian Orogeny. Legend: Dark blue = ocean Light blue = shallow seas Tan = landmass Black outlines = modern day coastlines showing their respective positions