:Well, here is a source that says it was a contested (although "fringe" is only implied) theory.  In part, it says: 

 ::Wegener's ideas were very controversial because he didn't have an explanation for why the continents moved, just that there was observational evidence that they had. At the time, many geologists believed that the features of the Earth were the result of the Earth going through cycles of heating and cooling, which causes expansion and contraction of the land masses. People who believed this were called the anti-mobilists. The mobilists were in the opposite camp and supported Wegener's ideas, since many of them had seen evidence for continental motion, especially in the Alps. 

 ::Although Wegener's "continental drift" theory was later disproved, it was one of the first times that the idea of crustal movement had been introduced to the scientific community; and it laid the groundwork for the development of modern plate tectonics. As years passed, more and more evidence was uncovered to support the idea that the plates move constantly over geologic time. 

 :So, does this suffice?