Doing some internet searches about all I can find is that early versions of the Gospel of Mark made no mention of the resurrection.
It is possible that JVH posted a link about the Codex Sinaiticus, and in that link it made mention of this fact.
One interesting fact about Codex Sinaiticus is that one of Christian cornerstone beliefs, the story of resurrection of Jesus is not mentioned. Instead, the story simply describes disciples finding an empty burial tomb, and leaving in fear. This implies that the "resurrection" was addended by later generations of followers.