| details |
Bortonian |
Pleistocene |
New Zealand |
Mildenhall,D.C. Pollen and spores. (In: Stages of the New Zealand Marine Cenozoic: A Synopsis. R.H.Hoskins, editor) |
1982 |
| details |
Bortonian |
Okehuan |
New Zealand |
Hornibrook,N.de B. Palaeontology. (In: The Geology of New Zealand. R.P.Suggate et al, editors) |
1978 |
| details |
Bortonian |
Recent |
New Zealand |
Couper,R.A. New Zealand Mesozoic and Cainozoic plant microfossils. |
1960 |
| details |
Bortonian |
Kaiatan |
New Zealand(N.I.) |
McIntyre,D.J. et al. Pollen from deeply buried coal measures, Taranaki, New Zealand, No.1. |
1961 |