Originally Posted by Fat Satisfaction
Garchomp was originally an intended evolution for Sharpedo which is why the two carry on the same star shape on their foreheads, I'm not sure however if this meant that Garchomp would have kept its current type or not
I think not. Sure, they are both sharks with similar main colour and a star, but from there on, the differences pile up. They are far too different for being designed as evolutionary related.