Gigacane Aranitu

Gigacane Aranitu happened before humans existed so we can't know a lot of it. Using our evidence, we might thing that it started around March 5, 62000000 BC due to evidence, but things doesn't fit, like it said it started as a Category 2, but that makes scene due to rising temperatures because of the Asteroid. We don't know. The End.
 * Creation
 * Dissipation