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Very well preserved oldest Silurian land plant with sporangium - Cooksonia
Very well preserved oldest Silurian land plant with sporangium - Cooksonia
Very well preserved oldest Silurian land plant with sporangium - Cooksonia
Very well preserved oldest Silurian land plant with sporangium - Cooksonia

Very well preserved oldest Silurian land plant with sporangium - Cooksonia

$ 52.27

Availability: 100 in stock
  • Return shipping will be paid by: Buyer
  • Restocking Fee: No
  • Condition: New
  • Refund will be given as: Money Back
  • All returns accepted: Returns Accepted
  • Item must be returned within: 30 Days

    Description

    Amberabg
    Very well preserved rare oldest Silurian fossil land plant with sporangium
    Species: Cooksonia sp.
    Upper Silurian (Ludlowian/Pridolian) of the Holy Cross Mountains, Poland. Kielce region
    Dimension: matrix 22x18mm Cooksonia 7mm
    The first fossil records of vascular plants, that is, land plants with tissues that carry food, appeared in the second half of the Silurian period. The earliest known representatives of this group are the Cooksonia (mostly from the northern hemisphere) and Baragwanathia (from Australia). A primitive Silurian land plant with xylem and phloem but no differentiation in root, stem or leaf, was much-branched Psilophyton. This plant reproducied by spores and respired through stomata on every surface, and probably photosynthesizing in every tissue exposed to light.
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