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Was the Cambrian explosion both an effect and an artifact of true polar wander?
2015
American Journal of Science
Charles Darwin suspected that the Cambrian "explosion" might be an artifact of fossil preservation. A more recent, initially controversial hypothesis that repeated true polar wander (TPW) triggered the Ediacaran-Cambrian explosion of animal life has been supported by numerous paleomagnetic and geochronologic refinements. These data imply ϳ75°of TPW between 535 and 515 million years ago, coinciding with the paleontologically observed rise in metazoan diversity and disparity. We show here that
doi:10.2475/10.2015.02
fatcat:sr4vkaso7fgn5isxkmkltfyhsq