Pachyrukhos is an extinct genus of hegetotheriid notoungulate from the Early to Middle Miocene (Colhuehuapian-Friasian in the SALMA classification) of Argentina and Chile.
The Pachyrukhos genus, a type of extinct mammal called a hegetotheriid notoungulate, lived during the Early to Middle Miocene epoch (specifically the Colhuehuapian-Friasian period) in Argentina and Chile.