Evolution of Independent Plants: From Cooksonia to C. barrandae
Explore the evolution of independent plants through the discovery of Cooksonia, a photosynthesizing stem, and the description of the sporophyte of C. barrandae from 432 million years ago. Learn about the transition from a gametophyte-dependent generation to self-sufficient plants in this fascinating journey through plant physiology and reconstruction.
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Presentation Transcript
Physiology Cooksonia is green and red photosynthesizing self sufficient stem. It is likely that some fossils preserve a sporophyte generation which was dependent on gametophyte. However, no fossil record of gametophyte has been discovered to date. In 2018, the sporophyte of a new specie C. barrandae was described from 432 million years ago.
