by Spider-Fossil

                                                              Cooksonia sp.  with sporangium
                                                              The first fossil macrosopic land plants 433-393 mya

                                                                       Upper Silurian (Ludlowian/Pridolian)
                                                                       of the Holly Corss Mountains, Kielce region, Poland
                                                               C157

                                                                                dimension:  matrix 30 x 23 mm, plant  9mm

                                                                         

Cooksonia is an extinct grouping of primitive land plants. The earliest Cooksonia date from the middle of the Silurian; the group continued to be an important component of the flora until the end of the Early Devonian, a total time span of 433 to 393 million years ago.


Cooksonia Reconstruction


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