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Cooksonia - Oldest Silurian land plant with pefectly preserved sporangium
Cooksonia - Oldest Silurian land plant with pefectly preserved sporangium
Cooksonia - Oldest Silurian land plant with pefectly preserved sporangium
Cooksonia - Oldest Silurian land plant with pefectly preserved sporangium

Cooksonia - Oldest Silurian land plant with pefectly preserved sporangium

$ 79.2

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

    Description

    Amberabg
    Rare complete oldest Silurian fossil land plant with pefectly preserved sporangium
    Species: Cooksonia sp.
    Upper Silurian (Ludlowian/Pridolian) of the Holy Cross Mountains, Poland. Kielce region
    Dimension: matrix 50x30mm Cooksonia 6mm
    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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