Jan 312017
Say hello to Saccorhytus coronarius, a truly fugly ancestor of yours from about half a billion years ago.
Meiofaunal deuterostomes from the basal Cambrian of Shaanxi (China)
This little guy (about a millimeter) is an ancestor to vertebrates. Embarrassingly for the family tree, the digestive tract, which starts with a clearly oversized mouth, terminates with… the mouth. Bleah.