Typhloesus wellsi is an extinct species of enigmatic bilaterian animals from the Bear Gulch Limestone.

Mark Purnell, of the Centre for Palaeobiology at the University of Leicester, said that it was not definitively known "what this weird thing is".

[1] It was then thought to have been the first known body fossil of a conodont, which are a primitive group of jawless agnathan fish distantly related to lampreys and hagfish.

[4] This was based on the presence of "conodont elements", which are the small comb-like teeth of those animals.

The teeth however were actually located in the gut contents of the Typhloesus, meaning that while it wasn't a conodont, they were a part of its diet.