Typhloesus

Possible mollusk from the Carboniferous of Montana

Typhloesus wellsi is an extinct species of enigmatic bilaterian animals from the Bear Gulch Limestone. It was once thought to be the first body fossil of a conodont, based on what turned out to be its gut contents; it is now thought to exhibit a radula, which would make it a mollusc, although different types of animal have independently evolved radula-like features. Mark Purnell, of the Centre for Palaeobiology at the University of Leicester, said that it was not definitively known "what this weird thing is".

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