The notion of the Cambrian pananimalia genome.

  title={The notion of the Cambrian pananimalia genome.},
  author={Susumu Ohno},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={93 16},
  • Susumu Ohno
  • Published 1996 in
    Proceedings of the National Academy of Sciences…
The toil by photosynthesizing cyanobacteria and blue-green algae of nearly three billion years appeared to have finally resulted in the sufficient accumulation of molecular oxygen. So, the stage was set for the emergence, at the ocean bottom, of diverse animals that were consumers of molecular oxygen. It now appears that this Cambrian explosion, during which nearly all the extant animal phyla have emerged, was of an astonishingly short duration, lasting only 6-10 million years. Inasmuch as only… CONTINUE READING

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