Hollis, C.J.; Beu, A.G.; Crampton, J.S.; Crundwell, M.P.; Morgans, H.E.G.; Raine, J.I.; Jones, C.M.; Boyes, A.F. 2010 Calibration of the New Zealand Cretaceous-Cenozoic timescale to GTS2004 Lower Hutt, N.Z.: GNS Science. GNS Science report 2010/43 20 p.
Abstract: The criteria used to establish the age ranges of New Zealand stages for Cretaceous- Cenozoic time have been reviewed and the ages have been calibrated to the 2004 International Geological Timescale, incorporating modifications introduced by Ogg et al. (2008) as well as recent biostratigraphic data from New Zealand studies. An updated version of the New Zealand Geological Timescale has been constructed using Timescale Creator vers. 4.10. This updated New Zealand timescale is referred to as NZGTS 2010/1. (auth/DG)