Deut. 32.8 said:
Please substantiate this. I know of no body of scholarship suggesting that "the Markan account is most likely later than the other Gospels".
It is simply absurd that you would speak with such authority about the Synoptics problem yet know nothing about the work of Goodacre and others.
Obviously most scholars agree that Mark is dated before the other Gospels. However, the resurrection story is dated later than most of Mark, which is why it is in question and being discussed here. So when I said,
the Markan account I meant the Markan ressurection story which may not have been part of the original Mark, which predates the other Gospels. If the section were written late (which would explain why it does not appear in many anceint witnesses), then the other Gospels which do appear in those early witnesses would be written before the Markan account of the resurrection. Therefore, my point above is that since the section of Mark that is in question is dated late (eg, not in some very early texts that you mentioned above), then the other Gospel writers could not have used that particular tradition when they wrote their resurrection accounts. I have edited the post above to give it more clarity.
I am basing most of my views on Ellis's
Making of the NT Documents as well as upon several standard NT introductions by Kummel, Koester, Goodspeed, Schnelle, and many others. The dating of Mark as the earliest Gospel used to be at least close to universally accepted, along with the theory of Markan priority, which to date is loosing some ground, but is still being defended.
No, Goodacre does not ring a bell, but I would be happy to take a look at his work. These days there are so many hypotheses concerning the substance and theology of Q that it is difficult to find a large group (possibly five) scholars who agree on its source and theology.