Neoreomys is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.

Taxonomy

Phylogenetic analysis has shown Neoreomys to be a monophyletic genus not closely related to Dasyproctidae, but instead representing a plesiomorphic member of Cavioidea.

Palaeobiology

Locomotion

Geometric morphometric analysis of the foot of Neoreomys points to it having had a generalised mode of ambulation, in contrast to other Late Oligocene and Early Miocene caviomorphs.

Palaeoecology

Dental microwear analysis has found that Neoreomys australis was a consumer of fruits and seeds.