Descriptor : Relationship between carcass canals zone A and intersept (IW)

Descriptor type : categorical

Zone A: Intervallum side.

Canal: Pore modified by skeletal structure thikening or by lintels streching. Canal length is greater than perforation diameter.

Lintel: Skeletal structure separating and bounding adjacent pores.

Intersept: Part of a wall or intervallum between two adjacent radial vertical structures (septa, taeniae…).

Carcass: Part of wall on intervallum side.

IW: Inner wall.

Stirrup canals

Stirrup: Perforation in front of each vertical intervalar structure.

NB: Transverse section resembles stirrup.

Vertical intervallar structures: Longitudinal and often radial structures inside the intervallum (septa, taeniae…).

1 canal spanning several intersept

1 row of canals per intersept

Several rows of canals per intersept

isn't included in the term

Hierarchy

Carcass perforations: inner wall (IW)
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 |_ Relationship between carcass canals zone A and intersept (IW)