Groupe : 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.

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Inner wall

Liste des descripteurs

  1. Structure of inner carcass wall (IW)
  2. Type of carcass perforations: inner wall (IW)
  3. Shape of carcass perforations openings (IW)
  4. Subdivision of carcass perforations openings (IW)
  5. Rows number of carcass pores per intertabula (IW)
  6. Constitution of carcass canal system (IW)
  7. Building of carcass canals zones (IW)
  8. Shape of carcass canals tubes zone A (IW)
  9. Porosity of carcass canals tubes zone A (IW)
  10. Direction of carcass canals tubes zone A (IW)
  11. Shape of carcass canals tubes zone B (IW)
  12. Direction of carcass canals tubes zone B (IW)
  13. Porosity of carcass canals tubes zone B (IW)
  14. Rows number of carcass perforations per intersept (IW)
  15. Building of carcass perforations (IW)
  16. Presence of carcass external plates: inner carcass wall (IW)
  17. Type of carcass external plates (IW)
  18. Localization of carcass bracts (IW)
  19. Shape of the interlocking of successive carcass annuli (IW)
  20. Localization of carcass annuli according tabulae (IW)
  21. Shape of carcass external plates (IW)
  22. Rims of carcass external plates (IW)
  23. Direction of carcass external plates (IW)
  24. Shape of morphological tubes (IW)
  25. Presence of stipules (IW)
  26. Type of additional sheath (IW)
  27. Type of microporous sheath (IW)
  28. Repartition of bracts on additional sheath (IW)