Descriptor : Repartition of vertical intervallar structures pores

Descriptor type : categorical

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

Intervallum: Space enclosed between the walls.


Aporous

Aporous: No pore.

../images/pseudoseptes_sans_pore.png

Aporous

Sparsely porous

Sparsely porous: Rare pores irregularly distributed.

../images/Photos_numerisees_00001I.png

Sparsely porous

../images/SEPTES_PEU_PERFOREI.png

Sparsely porous

Completely porous

Completely porous: Pores distributed frequently and uniformly.

../images/adet_0004I.png

Completely porous

../images/SEPTES_COMPLEMENT_POREUXI.png

Completely porous

One row of pores per vertical structure

NB: A single longitudinal row of pores of diameter subequal to intervallum width.

../images/1pore_par_septeI.png

One row of pores per vertical structure

../images/DOKIDOCYATHINAI.png

One row of pores per vertical structure

Pores restricted to outer wall area

../images/tollicyathus_ishensis1.png

Pores restricted to outer wall area

../images/tollicyathus_ishensis2.png

Pores restricted to outer wall area


Hierarchy

Vertical intervallar structures
 |
 |_ Repartition of vertical intervallar structures pores

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