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Pseudotomus robustus

Mammalia - Rodentia - Ischyromyidae

Taxonomy
Paramys robustus was named by Marsh (1872). It is a 3D body fossil. Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

It was recombined as Ischyrotomus robustus by Peterson (1919), Hay (1930), Wilson (1940); it was recombined as Pseudotomus robustus by Matthew (1909), Simpson (1941), Wilson (1949), Wood (1962), Gazin (1976), Korth (1985), Dunn and Rasmussen (2007).