Makes sense to me. The mountain range was formed when the continents were attached, and they remain now that they have shifted. In addition to splitting from each other the continents have simply turned a little as well. From what I remember of the tectonics classes I snored through about a decade ago, that's all feasible. The mountains might realistically not be Himalayan in height, as I reckon they'd be further eroded, but eh, a little fantasy is permissible.
Edit: Nay, a little fantasy is mandatory!
Edit: Nay, a little fantasy is mandatory!