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Museum quality Cooksonia - Big oldest Silurian land plant with sporangium
Museum quality Cooksonia - Big oldest Silurian land plant with sporangium
Museum quality Cooksonia - Big oldest Silurian land plant with sporangium
Museum quality Cooksonia - Big oldest Silurian land plant with sporangium
Museum quality Cooksonia - Big oldest Silurian land plant with sporangium
Museum quality Cooksonia - Big oldest Silurian land plant with sporangium

Museum quality Cooksonia - Big oldest Silurian land plant with sporangium

$ 79.2

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

    Description

    Amberabg
    Museum quality oldest Silurian fossil land plant. Big Cooksonia with sporangium
    Species: Cooksonia sp.
    Upper Silurian (Ludlowian/Pridolian) of the Holy Cross Mountains, Poland. Kielce region
    Dimension: matrix 40x27mm Cooksonia 16mm
    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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