Nototamias is a genus of fossil ground squirrels from the Miocene of North America. Species include Nototamias hulberti Pratt and Morgan, 1989; Nototamias ateles (Hall, 1930); and Nototamias complicatus Korth, 1992. Although the genus, characterized by fused roots on the lower cheekteeth, is often regarded as closely related to the chipmunks, and N.