isodomic masonry (opus quadratum)
A type of masonry in which blocks of equal length and thickness are laid in courses, with each vertical joint centered on the block below.

orthostate
A course of blocks laid on edge, normally in the lower part of the wall of a building.

periplus, the
From the greek word "περίπλους" (sailing-around), roughly corresponding to the Latin cercum-navigatio. For Phoenicians, Greeks, Romans nd Byzantines it was a manuscript document belonging to ancient documentary genre that survived in late antiquity.used as a guide for sea travelers. Thw periploi listed in order the ports and coastal lines, with approximate distances between, even shelters, that the captain of a vessel could expect to find along a shore, market towns, neighboring tribes and their wares. They also contain historical and mythological information and for the most part they are works of erudition.

pseudo-isodomic masonry
Masonry built of blocks of the same height within each course , but each course varying in height.