Question about the origin of the Greek hoplite shield

[Giannis K. Hoplite]

Well,the aspis did have a quite distinctive for throughout its life,but this doesn't mean it has always been constructed the same way. Nor that different times didn't favor some minor chnages on the preferred size,depth etc.
As for the phalanx,this also passed through many stages or better said,it must have been under constant evollution,and we can't know exactly how it worked at any specific period. I do believe though that the aspis favored a generally more rigid formation,and this formation favored the aspis. its a round arguement.
Khaire
Giannis