| Named By: | PierreinOlivier Antoine, Laurent Marivaux, Darin A. Croft, Guillaume Billet, Morgan Ganeroed, Carlos Jaramillo, Thomas Martin, Maeva J. Orliac, Julia Tejada, Ali J. Altamirano, Francis Duranthon, Gregory Fanjat, Sonia Rousse & Rodolfo Salas Gismondi in 2012 |
| Time Period: | Middle Eocene (Divisaderan)~41 Ma |
| Location: | Peru, Loreto - Yahuarango Formation |
| Size: | Uncertain |
| Diet: | Herbivore |
| Fossil(s): | Mostly teeth |
| Classification: | | Chordata | Mammalia | Rodentia | Hystricomorpha | Hystricognathi | Caviomorpha | |
Cachiyacuy is an extinct genus of caviomorph known from the Loreto of Peru. It contains two species: the type species C. contamanensis and C. kummeli.