The giant megatheriine ground slothEremotherium eomigransis described based on remains from the late Blancan to early Irvingtonian (late Pliocene to early Pleistocene) of Florida. It resembles the other giant megatheriinesE. laurillardiandMegatherium americanumin size, but is clearly distinguished by a pentadactyl manus. It is assigned to the genusEremotheriumbased on two synapomorphies shared withE. laurillardi: a coarse and rugose ectotympanic that ventrally is prominently expanded mediolaterally, and contiguous articular facets of the axis for the atlas.E. eomigransis the earliest megatheriine known to have migrated to North America across the Panamanian Land Bridge during the Great American Interchange.