†subfamily Potamarchinae Kraglievich 1926 (caviomorph)
Mammalia - Rodentia - Dinomyidae
Parent taxon: Dinomyidae according to L. Kerber et al. 2016
See also Tejada-Lara et al. 2015
Sister taxa: Briaromys, Carlesia, Colpostemma, Diaphoromys, Dinomys, Discolomys, Doellomys, Drytomomys, Eumegamyinae, Eumegamys, Eumegamysops, Eusigmomys, Ferigolomys, Gyriabrus, Josephoartigasia, Olenopsis, Paranamys, Pentastylodon, Pentastylomys, Protomegamys, Pseudosigmomys, Rusconia, Scleromys, Simplimus, Telicomys, Telodontomys, Tetrastylomys
Subtaxa: Potamarchus Pseudopotamarchus
Ecology: ground dwelling frugivore-folivore
Distribution: