As part of my Ph.D. studies I had the pleasure of working on the Ediacaran Lonymyndian Successions of the Welsh Borderlands, eventually crossing paths with the wonderful Pete Crimes, who ended up being the external examiner of my thesis and then a great friend. Pete and I published (with one of his former students J. Pauley) on a number of peculiar structures that we collectively called "blobs", but which included morphologies like "donuts", "cherry buns" and "blobs" of various sizes, and the Precambrian pseudofossil Arumberia.
McIlroy, D., Crimes, T. P., and Pauley, J. C. 2005. Fossils and matgrounds from the Neoproterozoic Longmyndian Supergroup, Shropshire, UK. Geological Magazine, 142: 441–455.
I thought that that would be the end of the matter. I knew that the sedimentology could use a modern sequence stratigraphic approach, but my move to Canada seemed to put an end to my Longmyndian interest. That is until Rich Callow (a student of my Ph.D. supervisor Martin Brasier and currently a postdoc with me here at MUN) discovered microbial filaments in the same successions.
Callow, R. H. T. and Brasier, M. D. 2009. A solution to Darwin’s dilemma of 1859: Exceptional preservation in Salter’s material from the late Ediacaran Longmyndian Supergroup, England. Journal of the Geological Society, London, 166: 1–4.