I recall reading that there was only found a few bone fragments and pieces here and there but was bloated in a transition of whales etc. The legs and arms were pure imagination if i recall..
A Google on "whale" with each of the names "Thewissen" and "Gingerich" will correct your recollection. Both
Pakicetus and
Ambulocetus are at least 50% complete, with pelvisis, legs, skulls, etc. Not "pieces here and there." Heck,
National Geographic had an issue a few years back that showed a bunch of the fossils.