Groupe : Transverse section

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Transverse section

Liste des descripteurs

  1. Shape of cup bulges
  2. General shape of folds affecting both walls
  3. Shape of folds affecting both walls
  4. Number of walls
  5. Structure of outer carcass wall (OW/SW)
  6. Structure of inner carcass wall (IW)
  7. Type of habitus
  8. Structure of central Cavity (or internal if one wall)
  9. Type of carcass perforations: outer wall or single wall (OW/SW)
  10. Rows number of carcass perforations per intersept (OW/SW)
  11. Presence of carcass bumps: outer wall or single wall (OW/SW)
  12. Number of perforation on carcass bumps (OW/SW)
  13. Presence of carcass external plates: outer wall or single wall (OW/SW)
  14. Rims of carcass external plates (OW/SW)
  15. Type of carcass perforations: inner wall (IW)
  16. Constitution of carcass canal system (IW)
  17. Building of carcass canals zones (IW)
  18. Rows number of carcass perforations per intersept (IW)
  19. Building of carcass perforations (IW)
  20. Presence of carcass external plates: inner carcass wall (IW)
  21. Rims of carcass external plates (IW)
  22. Presence of thorny corolla
  23. Presence of vertical intervallar structures
  24. Type of vertical intervallar structures
  25. Porosity of vertical intervallar structures
  26. Type of links between intervallar structures
  27. Repartition of synapticulae
  28. Type of plates
  29. Presence of intervallar cells
  30. Type of Intervallar cells
  31. Section shape of intervallar cells
  32. Presence of tabulae
  33. Pores shape of tabulae
  34. Type of other aquiferous unit