Eugim writes that the
Tarot de Marseille has iconographic origin at Medieval times at FRANCE
That is quite a different statement (at least in one way or reading such) to saying anything about the development of tarot, but rather about how the Tarot de Marseille's iconography has French MediƦval cognates.
On the whole, I agree that many images have similar form found on MediƦval French structures, in both books and on religious houses as petroglyphs.
...but... that to me more likely shows that as
tarot moved from the Piedmont and North Italian area across France and northwards, its imagery was influenced by local imagery and the understanding (and also its lack thereof) of its local artisans.
So I would see that as evidence that the earliest tarot arose as a deck in approximately 15th century northern Italy (which was to be re-conquered by France around 1500 in any case), and in its (ie, tarot's) travels and re-productions, shifts occurred that reflected local sensibilities, including influences from the ever so prominent petroglyphs gracing every town square.