Microscopic Crystals Reveal Multiple Jurassic Extinctions
[html]Ancient, microscopic crystals show a potential link between a series of less well-known mass extinctions and periodic volcanic activity.[/html]
Source: Microscopic Crystals Reveal Multiple Jurassic Extinctions (http://ht**://www.discovermagazine.c**/the-sciences/microscopic-crystals-reveal-multiple-jurassic-extinctions)