Nobody denies that there were prayers and praise and sctipture readings. Still, you talk about the full "liturgies" of the later Churches, yet there was no mention of incense, fear of dropping it or special disposal for the crumbs, and all of the pther aspects of the Church institution (even beyond liturgy) like David mentioned. I use the word "liturgy", but I mean the later grand, "high" forms. Yes, simply having a Communion with a prayer and scripture reading can be called a "liturgy", but that's not what we're disputing.
A lot is on my mind, and it's taking time to digest those quotes, so I'm curious, what exactly do you mean by "intercession"? Not prayers to icons and dead saints is it? Or is it supposed to be God changing the bread and wine into flesh and blood? And what do you mean by "reservation" of the scaraments?
And even the small amount of formalization that were there by then in the nearly 100 or so years until Justin had plenty enough time to develop. It does not prove it was "handed down from the apostles". And the description of "real Presense" is still a bit ambiguous, and does show a clear development in thinking:
http://members.aol.com/etb700/catholicorthodox.html
We see it go from Ignatius' "they confess not the Eucharist to be the flesh of our Saviour Jesus Christ" which still leaves it open to be a metaphor (Where a "simile" is "a comparison using 'like' or 'as'"; a metaphor calls it like it is the thing it is being compared to). Then, expanding upon this, a half century later, Justin's "not as common bread and common drink do we receive these, but...the food which is blessed by the prayer of His word...is the flesh and blood of that Jesus who was made flesh.". That too can still be metaphorical, but now he adds to it "blessed by the prayer of His word". He mentions a "transmutation", but
that appears to be referring to the "nourishment" or our own bodies (suggesting as I always point out, that this was not cracker crumbs, or wafers especially made for the "service". He also otherwise pictures the bread as a "remembrance"). Then, in the next century, we begin to get more expounding of some "change" in the food TO "the flesh and blood".