Descriptor : Relationship between carcass annuli and tabulae (IW)

Descriptor type : categorical

Annulus (plur. annuli): Ring-shaped (annular) plate separating horizontal rows of pores.

Tabula (plur. tabulae): Transverse porous partition linking both walls of a two-walled cup.

Carcass: Part of wall on intervallum side.

IW: Inner wall.

Annuli in front of tabulae

Annuli between each tabulae

Annuli and tabulae arise independently.

No tabula

Hierarchy

Type of carcass external plates (IW)
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 |_ Relationship between carcass annuli and tabulae (IW)

Belongs to the groups