Image of the Day: Toothy Slugs

The 480–million-year old Calvapilosa kroegerii was a spiny slug with a tongue lined with hundreds of tiny teeth.

The Scientist Staff
Feb 6, 2017

A fossil of Calvapilosa kroegeriLUKE PARRY AND PETER VAN ROY(See J. Vinther et al., “Ancestral morphology of crown-group molluscs revealed by a new Ordovician stem aculiferan,” Nature doi:10.1038/nature21055, 2017)