Steiromys is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.
Taxonomy Originally, the species Eosteiromys annectens was classified as a member of the genus Steiromys. However, detailed taxonomic study has moved the species to the genus Eosteiromys.
Palaeobiology Locomotion The foot morphology of Steiromys suggests it may have been scansorial.
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