1. What, if anything, is Quaternary? Van Couvering, John A.; Berggren, William A.; Aubry, Marie-Pierre; Gradstein, Felix M.; Kent, Dennis V.; Hilgen, Frits J.; Lourens, Lucas J.; McGowran, Brian 2009 GeologyPaleontologyPaleoclimatology
2. Paleogene time scale miscalibration: Evidence from the dating of the North Atlantic igneous province Aubry, Marie-Pierre; Swisher, Carl C.; Kent, Dennis V.; Berggren, William A. 2003 Articles GeologyPaleoclimatology