From Ottawa Citizen has a nice long article on Elkanah Billings and his work on the Ediacaran fauna in Canada:
"Only during this decade did the global scientific community approve the Ediacaran as the first major revision to the calendar of Earth's history in more than a century. It was a stunning and long-overdue vindication of Ottawa's pioneer paleontologist [Billings], who first theorized -- in a solitary stance among his doubting contemporaries -- that the strange, ring-like markings from Newfoundland might be faint relics of a more sophisticated, multicellular form of life before such life was supposed to exist."
