200 million years ago, the super-continent Pangaea split in two: forming Gondwana and Laurasia. Cataclysmic tectonic activity and apocalyptic extinction events fractured these landmasses further, until the Earth resembled its shattered modern equivalent. Ice Age land bridges connected North America and Eurasia, traversing the Atlantic and Bering Strait, coinciding with the rise of flowering plants. Familiar Pacific Northwest flora families like maple and oak are now ubiquitous, sown across the globe.
How to get there:
Laurasia split apart long ago, but the gardens flank Lab II.