On the discovery and description of a 100 million year old fossil hagfish - with no eyes, jaws or bones, but characteristic slime glands.
“It’s as rare as finding a fossilised sneeze,” said Prof Phillip Manning, a co-author of the study and chair of natural history at the University of Manchester.
See https://www.theguardian.com/science/2019/jan/21/like-finding-a-sneeze-fossil-identified-as-100m-year-old-hagfish,