Guiomys
In Depth Guiomys is a genus of caviomorph rodent that lived in South America during the Miocene. As a caviomorph mammal, Guiomys is related to modern day capybaras, chinchillas and guinea pigs. Further Reading - A new rodent (Cavioidea, Hystricognathi) from the middle Miocene of Patagonia, mandibular homologies, and the origin of the crown group … Read more