ACKNOWLEDGEMENTS
We thank J. Abels, M. Borsh, C. Knight, M. North and J. Parks for help collecting specimens. We also thank J. DeGroote and P. Carvalho De Castro at UNI GeoTREE for generating the maps. Finally, we thank J. Abels, M. Borsh, J. Demastes, R. McDonnell and M. Myers for helpful comments on the manuscript.