Status as Part of New Zealand Standard Stage Sequence. From stratigraphy and paleontology it is certain that the Wangaloan lies near the boundary of the Cretaceous and Tertiary. It must correspond to part of the Waipawa Standard Section (including possible erosion intervals) between the top of the Haumurian and the base of the Heretaungan. Hornibrook and Harrington believe this part of the section to be continuous and consider the Wangaloan to be coeval with either the Teurian, Waipawan, or Mangaorapan stages. As these stages are well defined stratigraphically and more widely known than the Wangaloan, they recommend that the Wangaloan be abandoned as a stage for New Zealand-wide correlation. This recommendation is adopted in this report. Nevertheless the Wangaloan mollusca are important and distinctive, and it is unfortunate that their stratigraphic position is uncertain. They differ more from similar shallow-water Haumurian molluscs than would be expected if they were Teurian in age, and if not basal Dannevirke (Paleocene) may prove to represent a period of time marked by an unrecognized erosion interval between the Teurian and Waipawan. Teurian Stage (Danian) Type Locality. The Teurian is defined by Hornibrook and Harrington (1957) as the beds at the Waipawa Section between the top of the Whangai Argillite of Haumurian age and the base of Waipawan blue-grey silty mudstone. The beds consist of 300 feet of grey silty sandstone overlain by 155 feet of black, yellow-weathering siltstone (Waipawa Black Shale) and by 10 feet of greensand. This section replaces the original type at Te Uri Stream (Finlay and Marwick, 1947: 230) which is faulted in its upper part. Correlation is by Foraminifera, which are abundant and well preserved, except in the black shale. Distribution. The Teurian is widely distributed in western Northland, Raukumara Peninsula, and the East Coast Ranges, and is often represented by calcareous mudstone that passes down into non-calcareous Whangai Shale. It also occurs at Waipara River, in Canterbury (Hornibrook and Harrington, 1957: 663). Macrofossils. Finlay and Marwick (1947: 230) mention small belemnites and reptile remains in South Island correlatives of the Teurian, and largely because of these macrofossils they have considered the Teurian to be Maestrichtian in age. The belemnites, at Shag Point and those below the upper Teredo Limestone south of Amuri Bluff, are associated with Haumurian microfaunas and are pre-Teurian in age (Hornibrook and Harrington, 1957: 660). The reptile remains occur in the Waipara Greensand which overlies “sulphur mudstone” with Teurian microfaunas and underlies mudstone with a basal Dannevirke microfauna (Hornibrook and Harrington, 1957: 667), and are almost certainly Teurian in age. Marine reptiles persisted longer than belemnites or ammonites in New Zealand, and strengthen the Cretaceous affinities of the Teurian. Microfauna. The following Foraminifera are given by Hornibrook (1958: 26) as being distinctive of the Teurian. They indicate a post-Maestrichtian age, and suggest correlation with the Danian. Globigerina linaperta Finlay Globorotalia membranacea (Ehrenberg) Loxostomum limonense (Cushman) Neoflabellina thalmanni (Finlay) Bolivinoides delicatula Cushman Haumurian Stage (Maestrichtian) Type Locality (Fig. 9). The type locality is the upper part of the Piripauan of Amuri Bluff as defined by Thomson in 1917. The beds below the Upper Teredo Limestone that were excluded from the Piripauan as redefined by Finlay and Marwick in 1940 can be correlated with those beds a few miles to the south that contain small belemnites and a microfauna that is pre-Teurian and typically Haumurian. They are included in the Haumurian as here defined. The following