Coba jelasin Nota dari Pleistosen dalam bahasa melayu dong

Ogg, Jim; June, 2004, Overview of Global Boundary Stratotype Sections and Points (GSSP's) http://www.stratigraphy.org/gssp.htm Accessed April 30, 2006.

The SMU-in-Taos Research Publications digital collection of anthropological and archaeological monographs contains Late Pleistocene environments of the southern high plains.

Pliocene-Pleistocene boundary at Vrica, Italy (Map)