That's pitch 4 of Moby Dick, not Dem Bones. Dem Bones climbs the distinctive dike that looks like a dinosaur spine, well right of the last pitch of Moby Dick. P4 of Moby Dick is great, but you miss the signature feature of Dem Bones.
i think i belayed on that feature at the top of this pitch and decided it looked like a spine too! Nothing in the MP description mentions climbing it; you'd have to traverse a long way right to actually climb it as a pitch, wouldn't you?