Descriptor : Additional sheath
Descriptor type : categorical
Additional sheath: Second part of a wall composed by two zones (carcass + sheath).
Additional sheath
- None
-
- Present on inner wall
-
Inner wall: Internal part of the skeleton, separating central cavity and skeletal structures, composed by a porous carcass, simple or coated by an additional sheath.
- Present on outer wall (or single wall)
-
Outer wall: External part of the skeleton, composed by a porous carcass, simple or coated by a additional sheath.
Single wall: External part of the skeleton for one-walled cup, composed by a porous carcass, simple or coated by a additional sheath.
Present on outer wall (or single wall)
Hierarchy
Additional sheath | |_ Type of additional sheath (IW) {None , Present on outer wall (or single wall)} | |_ Type of additional sheath (OW/SW) {None , Present on inner wall}