Idiorophus
Idiorophus is a genus of extinct toothed whales in the family Physeteridae. Fossils have been found in the Colhuehuapian Gaiman Formation of Argentina and the Libano Sandstone in Italy.
Idirophus is thought to have been long. The teeth of Idiorophus were similar in size to those of the modern orca. This species is thought to be a highly predatory sperm whale. The teeth are covered in enamel and show wear from eating large prey.