Table T5. Ages of biostratigraphically useful radiolarian datums in the New Zealand region.

Age (Ma)	Radiolarian event	Source
0.18	FO Buccinosphaera invaginata	Johnson et al. (1989)
0.46	LO Stylatractus universus	Caulet (1991)
0.83	LO Pterocanium trilobum	Lazarus (1992)
1.81	Pliocene/Pleistocene boundary
1.92	LO Eucyrtidium calvertense	Lazarus (1992)
1.93	FO Lithelius nautiloides	Caulet (1991)
1.93	FO Triceraspyris antarctica	Caulet (1991)
2.42	LO Helotholus vema	Lazarus (1992)
2.44	LO Desmospyris spongiosa	Lazarus (1992)
2.61	FO Cycladophora davisiana	Lazarus (1992)
3.5	LO Prunopyle titan	Lazarus (1992)
4.57	FO Helotholus vema	Lazarus (1992)
4.6-4.62	LO Helotholus praevema	Caulet (1991)
4.98-5.01	FO Desmospyris spongiosa	Caulet (1991)
5.01-5.11	FO Prunopyle titan	Caulet (1991)
5.03	LCO Lychnocanoma grande	Lazarus (1992)
5.2	Miocene/Pliocene boundary
6.1	LO Amphymenium challengerae	Lazarus (1992)
6.58	FO Amphymenium challengerae	Lazarus (1992)
6.79	FO Lamprocyrtis heteroporos	Morely and Nigrini (1995)
7.71	FO Acrosphaera? labrata	Lazarus (1992)
9.12	LO Cycladophora spongothorax	Lazarus (1992)
9.22	LO Stichocorys peregrina	Lazarus (1992)
9.32	LCO Ceratocyrtis stigi	Lazarus (1992)
9.83	FCO Ceratocyrtis stigi	Lazarus (1992)
10.36	FO Acrosphaera australis	Lazarus (1992)
10.53	LO Cycladophora humerus	Lazarus (1992)
10.61	FO Eucyrtidium pseudoinflatum	Lazarus (1992)
10.77	LO Actinomma glownini	Lazarus (1992)
12.55	FO Cycladophora spongothorax	Lazarus (1992)
12.68	FO Dendrospyris megalocephalis	Lazarus (1992)
13.61	FO Actinomma glownini	Lazarus (1992)
14.18	FO Cycladophora humerus	Lazarus (1992)
17.02	FO Eucyrtidium punctatum	Lazarus (1992)
(19.11	FO Cycladophora golli regipileus	Lazarus (1992)
20.72	FO Cyrtocapsella longithorx	Lazarus (1992)
22.48	FO Cyrtocapsella tetrapera	Harwood et al. (1992)
23.35-24.73	LO Lithomelissa sphaerocephalis	Takemura and Ling (1997)
23.8	Oligocene/Miocene boundary
23.94-25.26	FO Cycladophora campanula	Caulet (1991)
23.94-25.26	FO Gondwanaria hister	Caulet (1991)
24.12-?28.75	LO Axoprunum irregularis	Takemura and Ling (1997)
26.77-30.05	LO Eucyrtidium antiquum	Caulet (1991)
26.77-30.05	LO Lophocyrtis longiventer	Caulet (1991)
?28.28-29.40	FO Calocyclas sp. A	Takemura and Ling (1997)
?28.28-29.40	LO Lithomelissa challengerae	Takemura and Ling (1997)
28.75-30.10	LO Lychnocanoma conica	Takemura and Ling (1997)
30.48-?33.06	LO Calocyclas cf. semipolita	Takemura and Ling (1997)
30.94-34.66	FO Axoprunum irregularis	Takemura and Ling (1997)
30.94-34.66	FO Eucyrtidium antiquum	Takemura and Ling (1997)
30.94-34.66	LO Eucyrtidium spinosum	Takemura and Ling (1997)

Note: FO = first occurrence, LO = last occurrence, FCO = first common occurrence, LCO = last common occurrence. This table is also available in ASCII format.