Northern States Ride 2016

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The landscape that emerges from these excavations is that of a diverse ecosystem, some 12 million years ago, that developed on a broad flat grassy savannah. The skeletons are buried at a watering hole, in a layer of pure volcanic ash, consisting of tiny shards of glass from broken glass bubbles.


All images copyright © 2016 F.W. Vollmer and may not be used without permission.