Lophiodon

Lophiodon (from λόφος lóphos, 'crest' and ὀδούς odoús 'tooth') is an extinct genus of mammal related to chalicotheres. It lived in Eocene Europe, and was previously thought to be closely related to Hyrachyus. Lophiodon was named and described by Cuvier (1822) based on specimens from the Sables du Castrais Formation.