Table of Late Cenozoic North American Rodent species assemblages. NALMA = North American Land Mammal Age, CMZ = Cenozoic Mammal Zone, cf = compares favorably with, ? = Questionable allocation.
Horizontal cell colors: Light green = western assemblages, yellow= eastern assemblages,tan = biologic events, white = NALMA boundaries and radiometric dates.
Vertical cell colors: yellow = species from eastern assemblages, tan = species from western assemblages, white = species from both eastern and western assemblages.
Esr = estimated from sedimentation rate.
Supplementary Material and a full PDF of Figure 2 available for download in zipped file.