Delineating Grassland Evolution Using Phytoliths

I have a strong fascination with the evolution of grasslands, and this recent talk by Dr. Caroline A E Strömberg is pretty much the best and most comprehensive video about that subject.

If you are at all a scholar of grasses, then this is one video you should not miss. It is fairly long, but quite fascinating about what we know today regarding grassland evolution millions of year ago.