https://www.sciencedaily.com/releases/2015/04/150415155408.htm
New evidence adds the Capitanian extinction to the list of major extinction crises | ScienceDaily
Since the Cambrian Explosion, ecosystems have suffered repeated mass extinctions, with the 'Big 5' crises being the most prominent. Twenty years ago, a sixth...
list of majornew evidencecapitanian extinction