Groupe : Outer 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.

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Outer wall

Liste des descripteurs

  1. Structure of outer carcass wall (OW/SW)
  2. Type of carcass perforations: outer wall or single wall (OW/SW)
  3. Shape of carcass perforations openings (OW/SW)
  4. Size of carcass pores (OW/SW)
  5. Distribution of carcass pores (OW/SW)
  6. Repartition of carcass pores (OW/SW)
  7. Repartition types of carcass pores (OW/SW)
  8. Shape of carcass canals tubes (OW/SW)
  9. Subdivision of carcass perforations openings (OW/SW)
  10. Direction of carcass canals tubes (OW/SW)
  11. Origin of carcass canals (OW/SW)
  12. Rows number of carcass perforations per intersept (OW/SW)
  13. Presence of carcass bumps: outer wall or single wall (OW/SW)
  14. Number of perforation on carcass bumps (OW/SW)
  15. Direction of carcass bumps perforation (OW/SW)
  16. Presence of carcass external plates: outer wall or single wall (OW/SW)
  17. Type of carcass external plates (OW/SW)
  18. Shape of carcass external plates (OW/SW)
  19. Rims of carcass external plates (OW/SW)
  20. Direction of carcass external plates (OW/SW)
  21. Shape of morphological tubes (OW/SW)
  22. Presence of stipules (OW/SW)
  23. Type of additional sheath (OW/SW)
  24. Type of microporous sheath (OW/SW)
  25. Type of mesh (OW/SW)
  26. Repartition of bracts on additional sheath (OW/SW)