Descripteur : Type of carcass external plates (OW/SW)
Type du descripteur : categorical
External plates: Plate covering incompletely one or several perforations of a wall.
Carcass: Part of wall on intervallum side.
OW: Outer wall.
SW: Single wall.
Type of carcass external plates (OW/SW)
- Bracts
-
Bract: Plate stems from lintels which incompletely covering a single pore.
Lintel: Skeletal structure separating and bounding adjacent pores/canals. - Scales
-
Scale: Plate incompletely covering two or more adjacent pores or intersepts in the same horizontal file. They are intermediate between fused bract and annulus.
Scales
- Annuli
-
Annulus (plur. annuli): Ring-shaped (annular) plate separating horizontal rows of pores.
Annuli
Hiérarchie
Presence of carcass external plates: outer wall or single wall (OW/SW) | |_ Type of carcass external plates (OW/SW)