YORK, ENGLAND—The Guardian reports that Mike Heyworth, the president of the Council for British Archaeology, made a startling discovery on his own street as he walked home from work. In a trench dug by a utilities company, he spied fragments of Roman bone, including a jaw with teeth, as well as pottery. The workers were digging not far from a Roman cemetery where the remains of 80 gladiators were found in 2010, but evidently they were not obligated to have an archaeologist to monitor their project. The work has been halted and an archaeologist will examine the trenches for more evidence of Roman remains and artifacts.