Here is another instance of an upright tree preserved in a coal seam. Note
also that this drawing
depicts no visible traces of roots even though the tree is sitting atop a laminated Fireclay. The
fact that the Fireclay is laminated is itself also good evidence that it was not a soil, but rather a
sedimentary deposit, and that this tree stump did not grow here, but rather was transported.
After Williamson, William C., A Monograph on the Morphology and Histology of Stigmaria Ficoides, London, 1887, p. 13.
Polystrate Fossils Part One Polystrate Fossils Part Two Back to Upright Trees in Coal