Cambrian Explosion

This is a odd one when it comes to the headline. At https://dailygalaxy.com/205/07/cambrian-explosion-15-million-years-earlier/ … the Cambrian Explosion has  been brought into question, we are told. I eagerly had a look as it seems to represent a very early catastrophic event in the fossil record. A major upheaval, in fact. Questions then arise to how long before the event animals in that catastrophe had been living – in an uneventful and non-catastrophic environment. Sadly, not to be. The new research, we are informed, shows the dramatic burst of biodiversity occurred 15 million years earlier than believed. I said it was odd. Actually, the Cambrian Explosion is currently dated 530 million years ago. If it occurred 15 million years earlier it doesn’t really make much difference to anyone except to the time chronology on museum information boards. It is now 545 million years ago on the geochronological timescale of uniformitarian geology. The elephant in the room that is missing from this missive is that those animals would have evolved over a long period of time prior to whatever date they put on their sudden demise.