>I think Harold Coffin has established beyond doubt (and Spirit Lake has
>substantiated) that trunks of trees can and do become buried in upright
>habit, with or without attached roots or soil. He has published several
>articles on this work. THis is the currently accepted explanation for many
>of the upright trees in the Yellowstone Fossil Forests.
I will yield on the issue of trunk verticality
Foundation, Fall and Flood