i.e. Do lintels go over the edges of perforations openings ?
Carcass: Part of wall on intervallum side.
IW: Inner wall.
Protrusions aren't completely connected
Protrusions are completely connected
Bar: Radial-transverse lintel separating pores. It's biconcave in plan and with elongate cross-section.
Lintel: Skeletal structure separating and bounding adjacent pores.
Type of carcass perforations: inner wall (IW) | |_ Subdivision of carcass perforations openings (IW)